A structure is something of many parts that is put together. A structure can be a skyscraper, an outhouse, your body, or a sentence.

Structure is from the Latin word structura which means "a fitting together, building." Although it's certainly used to describe buildings, it can do more than that. A family's structure includes the relationship of its members, your body structure can refer to how your muscles and bones fit together. Sentence structure is how a sentence is put together, including subjects, verbs, and all that stuff English teachers love to yap about. Structure is usually a noun, but it can also be a verb meaning to impose order, like if you "structure an argument to convince your parents to let you stay out later."

Definitions of structure
  1. noun
    a thing constructed; a complex entity constructed of many parts
    “the structure consisted of a series of arches”
    synonyms: construction
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    airdock, hangar, repair shed
    a large structure at an airport where aircraft can be stored and maintained
    a raised structure on which gifts or sacrifices to a god are made
    arcade, colonnade
    a structure composed of a series of arches supported by columns
    (architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it
    a part of a structure having some specific characteristic or function
    a platform projecting from the wall of a building and surrounded by a balustrade or railing or parapet
    an upper floor projecting from the rear over the main floor in an auditorium
    a structure or device in which one end is counterbalanced by the other (on the principle of the seesaw)
    a structure of boards
    the external structure of a vehicle
    bridge, span
    a structure that allows people or vehicles to cross an obstacle such as a river or canal or railway etc.
    building, edifice
    a structure that has a roof and walls and stands more or less permanently in one place
    building complex, complex
    a whole structure (as a building) made up of interconnected or related structures
    a structure in which water is collected (especially a natural drainage area)
    coil, helix, spiral, volute, whorl
    a structure consisting of something wound in a continuous series of loops
    structure consisting of a row of evenly spaced columns
    column, pillar
    a vertical cylindrical structure standing alone and not supporting anything (such as a monument)
    corner, quoin
    (architecture) solid exterior angle of a building; especially one formed by a cornerstone
    a wooden structure consisting of an upright post with a transverse piece
    any structure that is very unsafe; where people are likely to be killed
    defence, defense, defensive structure
    a structure used to defend against attack
    a structure where people live or work (usually ordered along a street or road)
    (architecture) the structure consisting of the part of a classical temple above the columns between a capital and the roof
    a structure that has been erected
    a public or private structure (business or governmental or educational) including buildings and equipment for business or residence
    false bottom
    a horizontal structure that partitions a ship or box (especially one built close to the actual bottom)
    floor, level, storey, story
    a structure consisting of a room or set of rooms at a single position along a vertical scale
    a structure from which an artificially produced jet of water arises
    a structure or marking that serves to direct the motion or positioning of something
    card-house, cardcastle, cardhouse, house of cards
    an unstable construction with playing cards
    housing, living accommodations, lodging
    structures collectively in which people are housed
    the frame or body of a ship
    jungle gym
    a structure of vertical and horizontal rods where children can climb and play
    a layered structure
    landing, landing place
    structure providing a place where boats can land people or goods
    lookout, lookout station, observation tower, observatory
    a structure commanding a wide view of its surroundings
    structure built of stone or brick by a mason
    memorial, monument
    a structure erected to commemorate persons or events
    hill, mound
    structure consisting of an artificial heap or bank usually of earth or stones
    impediment, impedimenta, obstructer, obstruction, obstructor
    any structure that makes progress difficult
    divider, partition
    a vertical structure that divides or separates (as a wall divides one room from another)
    platform, weapons platform
    any military structure or vehicle bearing weapons
    a structure attached to the exterior of a building often forming a covered entrance
    post and lintel
    a structure consisting of vertical beams (posts) supporting a horizontal beam (lintel)
    a prefabricated structure
    any structure that branches out from a central support
    public works
    structures (such as highways or schools or bridges or docks) constructed at government expense for public use
    any structure that resembles a sail
    offset, set-back, setoff
    structure where a wall or building narrows abruptly
    a structure that provides privacy and protection from danger
    a structure resembling a shoebox (as a rectangular building or a cramped room or compartment)
    sign, signboard
    structure displaying a board on which advertisements can be posted
    arena, bowl, sports stadium, stadium
    a large structure for open-air sports or entertainments
    structure consisting of the part of a ship above the main deck
    supporting structure
    a structure that serves to support something
    a structure taller than its diameter; can stand alone or be attached to a larger building
    structure forming the transverse part of a cruciform church; crosses the nave at right angles
    a supporting structure composed of a system of connected trestles; for a bridge or pier or scaffold e.g.
    (architecture) a vaulted structure
    shipway, slipway, ways
    structure consisting of a sloping way down to the water from the place where ships are built or repaired
    a structure built over a well
    wind tunnel
    a structure resembling a tunnel where air is blown at known velocities for testing parts of aircraft
    a structure of small hexagonal cells constructed from beeswax by bees and used to store honey and larvae
    balance, counterbalance, equilibrium, equipoise
    equality of distribution
    abattoir, butchery, shambles, slaughterhouse
    a building where animals are butchered
    abutment arch
    an arch supported by an abutment
    a learned establishment for the advancement of knowledge
    part of a church divided laterally from the nave proper by rows of pillars or columns
    amphitheater, amphitheatre, coliseum
    an oval large stadium with tiers of seats; an arena in which contests and spectacles are held
    apartment, flat
    a suite of rooms usually on one floor of an apartment house
    apartment building, apartment house
    a building that is divided into apartments
    an architectural product or work
    arm, branch, limb
    any projection that is thought to resemble a human arm
    the area of a theater or concert hall where the audience sits
    aviary, bird sanctuary, volary
    a building where birds are kept
    back porch
    a porch for the back door
    baggage claim
    an area in an airport where arriving passengers can collect the luggage that has been carried in the hold of the aircraft
    Bailey bridge
    a temporary bridge designed for rapid construction
    ballpark, park
    a facility in which ball games are played (especially baseball games)
    an obstruction (usually metal) placed at the top of a goal
    (formerly) a mound of earth inside a fort from which heavy gun can be fired over the parapet
    barbacan, barbican
    a tower that is part of a defensive structure (such as a castle)
    a structure or object that impedes free movement
    basement, cellar
    the lowermost portion of a structure partly or wholly below ground level; often used for storage
    bathhouse, bathing machine
    a building containing dressing rooms for bathers
    beacon, beacon light, lighthouse, pharos
    a tower with a light that gives warning of shoals to passing ships
    bell tower
    a tower that supports or shelters a bell
    billboard, hoarding
    large outdoor signboard
    lodging for military personnel (especially in a private home)
    housing in a large building that is divided into separate units
    something that prevents access or progress
    block, blockage, closure, occlusion, stop, stoppage
    an obstruction in a pipe or tube
    the boarding that surrounds an ice hockey rink
    the exterior body of a motor vehicle
    bowling alley
    a building that contains several alleys for bowling
    any one of several designated areas on a ball field where the batter or catcher or coaches are positioned
    brass, memorial tablet, plaque
    a memorial made of brass
    a partition (often temporary) of planks or cloth that is used to control ventilation in a mine
    breakfast area, breakfast nook
    a place for light meals (usually near a kitchen)
    masonry done with bricks and mortar
    a circular projection that sticks outward from the crown of a hat
    broken arch
    an arch with a gap at the apex; the gap is usually filled with some decoration
    a partition that divides a ship or plane into compartments
    a place on a baseball field where relief pitchers can warm up during a game
    a stadium where bullfights take place
    barrow, burial mound, grave mound, tumulus
    (archeology) a heap of earth placed over prehistoric tombs
    rough projection left on a workpiece after drilling or cutting
    camber arch
    an arch with a straight horizontal extrados and a slightly arched intrados
    temporary lodgings in the country for travelers or vacationers
    cantilever bridge
    bridge constructed of two cantilevers that meet in the middle
    cattle grid, cattle guard
    a bridge over a ditch consisting of parallel metal bars that allow pedestrians and vehicles to pass, but not cattle
    cenotaph, empty tomb
    a monument built to honor people whose remains are interred elsewhere or whose remains cannot be recovered
    center, centre
    a building dedicated to a particular activity
    bema, chancel, sanctuary
    area around the altar of a church for the clergy and choir; often enclosed by a lattice or railing
    a building attached to a monastery or cathedral; used as a meeting place for the chapter
    cheval-de-frise, chevaux-de-frise
    defensive structure consisting of a movable obstacle composed of barbed wire or spikes attached to a wooden frame; used to obstruct cavalry
    the area occupied by singers; the part of the chancel between sanctuary and nave
    church tower
    the tower of a church
    (antiquity) an open-air stadium for chariot races and gladiatorial games
    a metal or leather projection (as from the sole of a shoe); prevents slipping
    clock tower
    a tower with a large clock visible high up on an outside face
    club, clubhouse
    a building that is occupied by a social club
    a complex of buildings in which an institution of higher education is housed
    housing consisting of a complex of dwelling units (as an apartment house) in which each unit is individually owned
    control tower
    a tower with an elevated workspace enclosed in glass for the visual observation of aircraft around an airport
    a detached or outdoor shelter for cooking
    corbel arch
    (architecture) an arch constructed of masonry courses that are corbelled until they meet
    corner, nook
    an interior angle formed by two meeting walls
    the topmost projecting part of an entablature
    court, courtyard
    an area wholly or partly surrounded by walls or buildings
    covered bridge
    a bridge whose passageway is protected by a roof and enclosing sides
    dead-air space
    an unventilated area where no air circulates
    a porch that resembles the deck on a ship
    a superstructure on the upper deck of a ship
    dining area
    an area arranged for dining
    dock, dockage, docking facility
    landing in a harbor next to a pier where ships are loaded and unloaded or repaired; may have gates to let water in or out
    covered stadium, dome, domed stadium
    a stadium that has a roof
    dorm, dormitory, hall, residence hall, student residence
    a college or university building containing living quarters for students
    drawbridge, lift bridge
    a bridge that can be raised to block passage or to allow boats or ships to pass beneath it
    bubbler, drinking fountain, water fountain
    a public fountain to provide a jet of drinking water
    drip, drip mold, drip mould
    (architecture) a projection from a cornice or sill designed to protect the area below from rainwater (as over a window or doorway)
    dry masonry
    masonry without mortar
    either of two low shelters on either side of a baseball diamond where the players and coaches sit during the game
    abode, domicile, dwelling, dwelling house, habitation, home
    housing that someone is living in
    a long artificial mound of stone or earth; built to hold back water or to support a road or as protection
    a structure consisting of an area that has been enclosed for some purpose
    fallout shelter
    a shelter to protect occupants from the fallout from an atomic bomb
    fan vaulting
    an elaborate system of vaulting in which the ribs diverge like fans
    farm building
    a building on a farm
    a building where livestock are fattened for market
    a building that would be hard to escape from if it were to catch fire
    flange, rim
    a projection used for strength or for attaching to another object
    flashboard, flashboarding
    boarding place along the top of a dam to increase its height
    flat arch, straight arch
    an arch with mutually supporting voussoirs that has a straight horizontal extrados and intrados
    flue, fluke
    flat bladelike projection on the arm of an anchor
    football stadium
    a stadium where football games are held
    footbridge, overcrossing, pedestrian bridge
    a bridge designed for pedestrians
    fortification, munition
    defensive structure consisting of walls or mounds built around a stronghold to strengthen it
    fort, fortress
    a fortified defensive structure
    a structure supporting or containing something
    front porch
    a porch for the front door
    the central body of an airplane that is designed to accommodate the crew and passengers (or cargo)
    narrow recessed balcony area along an upper floor on the interior of a building; usually marked by a colonnade
    gambling den, gambling hell, gambling house, gaming house
    a public building in which a variety of games of chance can be played (operated as a business)
    gazebo, summerhouse
    a small roofed building affording shade and rest
    (sports) the area immediately in front of the goal
    government building
    a building that houses a branch of government
    gravestone, headstone, tombstone
    a stone that is used to mark a grave
    glasshouse, greenhouse, nursery
    a building with glass walls and roof; for the cultivation and exhibition of plants under controlled conditions
    first floor, ground floor, ground level
    the floor of a building that is at or nearest to the level of the ground around the building
    gun enclosure, gun turret, turret
    a self-contained weapons platform housing guns and capable of rotation
    a large building for meetings or entertainment
    a large building used by a college or university for teaching or research
    Hall of Fame
    a building containing trophies honoring famous people
    a coil of rope or wool or yarn
    haven, oasis
    a shelter serving as a place of safety or sanctuary
    a projection out from one end
    hideaway, retreat
    an area where you can be alone
    high altar
    the main altar in a church
    high-rise, tower block
    tower consisting of a multistoried building of offices or apartments
    encumbrance, hinderance, hindrance, hitch, incumbrance, interference, preventative, preventive
    any obstruction that impedes or is burdensome
    a stadium for horse shows or horse races
    a lodging for travelers (especially one kept by a monastic order)
    hostel, student lodging, youth hostel
    inexpensive supervised lodging (especially for youths on bicycling trips)
    a building where travelers can pay for lodging and meals and other services
    casino-hotel, hotel-casino
    a building that houses both a hotel and a casino
    a dwelling that serves as living quarters for one or more families
    a building in which something is sheltered or located
    hovel, hut, hutch, shack, shanty
    small crude shelter used as a dwelling
    army hut, field hut, hut
    temporary military shelter
    an establishment consisting of a building or complex of buildings where an organization for the promotion of some cause is situated
    boss, knob
    a circular rounded projection or protuberance
    a sheet of material made by bonding two or more sheets or layers
    a building that houses a collection of books and other materials
    line of defence, line of defense
    defensive structure consisting of a barrier that can be employed for defense against attack
    living quarters, quarters
    housing available for people to live in
    a rounded projection that is part of a larger structure
    attic, garret, loft
    floor consisting of open space at the top of a house just below roof; often used for storage
    loft, pigeon loft
    a raised shelter in which pigeons are kept
    floor consisting of a large unpartitioned space over a factory or warehouse or other commercial space
    balcony consisting of the forward section of a theater mezzanine
    a roofed arcade or gallery with open sides stretching along the front or side of a building; often at an upper level
    a projecting piece that is used to lift or support or turn something
    mantelet, mantlet
    portable bulletproof shelter
    health facility, healthcare facility, medical building
    building where medicine is practiced
    megalith, megalithic structure
    memorial consisting of a very large stone forming part of a prehistoric structure (especially in western Europe)
    entresol, mezzanine, mezzanine floor
    intermediate floor just above the ground floor
    first balcony, mezzanine
    first or lowest balcony
    slender tower with balconies
    building where the business of a government department is transacted
    manufactured home, mobile home
    a large house trailer that can be connected to utilities and can be parked in one place and used as permanent housing
    mooring mast, mooring tower
    a tower for mooring airships
    dead room, morgue, mortuary
    a building (or room) where dead bodies are kept before burial or cremation
    national monument
    memorial consisting of a structure or natural landmark of historic interest; set aside by national government for preservation and public enjoyment
    the central area of a church
    a stone pillar having a rectangular cross section tapering towards a pyramidal top
    observation dome
    lookout consisting of a dome-shaped observatory
    a building designed and equipped to observe astronomical phenomena
    an obstruction that stands in the way (and must be removed or surmounted or circumvented)
    office block, office building
    a building containing offices where work is done
    opium den
    a building where opium is sold and used
    orchestra pit, pit
    lowered area in front of a stage where an orchestra accompanies the performers
    a building that is subordinate to and separate from a main building
    subsidiary defensive structure lying outside the main fortified area
    projection that extends beyond or hangs over something else
    flyover, overpass
    bridge formed by the upper level of a crossing of two highways at different levels
    a building where foodstuffs are processed and packed
    an area where everything is visible
    a monument commemorating a nation's dead heroes
    patio, terrace
    usually paved outdoor area adjoining a residence
    an establishment where perfumes are made
    a colonnade surrounding a building or enclosing a court
    an establishment for study and learning (sometimes including modern universities)
    lodging for occasional or secondary use
    pier arch
    an arch supported on piers
    (auto racing) an area at the side of a racetrack where the race cars are serviced and refueled
    (commodity exchange) the part of the floor of a commodity exchange where trading in a particular commodity is carried on
    business establishment, place of business
    an establishment (a factory or an assembly plant or retail store or warehouse etc.) where business is conducted, goods are made or stored or processed or where services are rendered
    house of God, house of prayer, house of worship, place of worship
    any building where congregations gather for prayer
    a building housing an instrument for projecting the positions of the planets onto a domed ceiling
    industrial plant, plant, works
    buildings for carrying on industrial labor
    pointed arch
    an arch with a pointed apex; characteristic of Gothic architecture
    bateau bridge, floating bridge, pontoon bridge
    a temporary bridge built over a series of pontoons
    an establishment maintained at public expense in order to provide housing for the poor and homeless
    a porch or entrance to a building consisting of a covered and often columned area
    building reserved for the officiating clergy
    press gallery
    an area (sometimes in a balcony) set aside for reporters (especially in a legislative hall)
    a pointed projection
    proscenium arch
    the arch over the opening in the proscenium wall
    lay-by, layby, pull-off, rest area, rest stop
    designated paved area beside a main road where cars can stop temporarily
    power pylon, pylon
    a large vertical steel tower supporting high-tension power lines
    a tower for guiding pilots or marking the turning point in a race
    quad, quadrangle
    a rectangular area surrounded on all sides by buildings
    living accommodations (especially those assigned to military personnel)
    rampant arch
    an arch whose support is higher on one side than on the other
    filthy run-down dilapidated housing
    asylum, refuge, sanctuary
    a shelter from danger or hardship
    eatery, eating house, eating place, restaurant
    a building where people go to eat
    rest house
    a building used for shelter by travelers (especially in areas where there are no hotels)
    ribbon development
    building complex in a continuous row along a road
    rink, skating rink
    building that contains a surface for ice skating or roller skating
    Roman building
    a building constructed by the ancient Romans
    an area within a building enclosed by walls and floor and ceiling
    rope bridge
    a bridge consisting of ropes
    a building having a circular plan and a dome
    round arch
    an arch formed in a continuous curve; characteristic of Roman architecture
    rowlock arch
    an arch that is formed with more than one concentric row of voussoirs
    a ruined building
    safety arch
    an undecorated arch that is included in order to strengthen or support a construction
    sandwich board
    signboard consisting of two hinged boards that hang front and back from the shoulders of a walker and are used to display advertisements
    school, schoolhouse
    a building where young people receive education
    school system
    establishment including the plant and equipment for providing education from kindergarten through high school
    scoinson arch, sconcheon arch
    an arch that supports part of the wall
    a shelter or screen providing protection from enemy fire or from the weather
    a large board for displaying the score of a contest (and some other information)
    partition consisting of a decorative frame or panel that serves to divide a space
    family circle, peanut gallery, second balcony, upper balcony
    rearmost or uppermost area in the balcony containing the least expensive seats
    segmental arch
    a shallow arch; an arch that is less than a semicircle
    Seven Wonders of the Ancient World, Seven Wonders of the World
    impressive monuments created in the ancient world that were regarded with awe
    temporary housing for homeless or displaced persons
    a small signboard outside the office of a lawyer or doctor, e.g.
    shooting gallery
    a building (usually abandoned) where drug addicts buy and use heroin
    shot tower
    tower of a kind once used to make shot; molten lead was poured through a sieve and dropped into water
    shouldered arch
    an arch consisting of a horizontal lintel supported at each end by corbels that project into the aperture
    signal box, signal tower
    a building from which signals are sent to control the movements of railway trains
    a cylindrical tower used for storing silage
    diminished arch, scheme arch, skeen arch, skene arch
    an arch whose height is less than half its width
    frame, skeletal frame, skeleton, underframe
    the internal supporting structure that gives an artifact its shape
    skew arch
    an arch whose jambs are not at right angles with the face
    an elevated box for viewing events at a sports stadium
    a very tall building with many stories
    snow bank, snowbank
    a mound or heap of snow
    a sharp-pointed projection along the top of a fence or wall (or a dinosaur)
    a small arch built across the interior angle of two walls (usually to support a spire)
    steel arch bridge
    a steel bridge constructed in the form of an arch
    spire, steeple
    a tall tower that forms the superstructure of a building (usually a church or temple) and that tapers to a point at the top
    masonry done with stone
    stoep, stoop
    small porch or set of steps at the front entrance of a house
    storage space
    the area in any structure that provides space for storage
    cyclone cellar, storm cellar, tornado cellar
    an underground shelter where you can go until a storm passes
    fastness, stronghold
    a strongly fortified defensive structure
    student union
    a building on a college campus dedicated to social and organizational activities of the student body
    supporting structure that holds up or provides a foundation
    supporting tower
    a tower that serves to support something
    suspension bridge
    a bridge that has a roadway supported by cables that are anchored at both ends
    tap house, tavern
    a building with a bar that is licensed to sell alcoholic drinks
    telco building, telecom hotel
    a building that houses telecommunications equipment
    an edifice devoted to special or exalted purposes
    a projection at the end of a piece of wood that is shaped to fit into a mortise and form a mortise joint
    collapsible shelter, tent
    a portable shelter (usually of canvas stretched over supporting poles and fastened to the ground with ropes and pegs)
    house, theater, theatre
    a building where theatrical performances or motion-picture shows can be presented
    threshing floor
    a floor or ground area for threshing or treading out grain
    toll bridge
    a bridge where toll is charged for crossing
    something resembling the tooth of an animal
    one of a number of uniform projections on a gear
    totem pole
    a tribal emblem consisting of a pillar carved and painted with totemic figures; erected by Indian tribes of the northwest Pacific coast
    tract housing
    housing consisting of similar houses constructed together on a tract of land
    trestle bridge
    a bridge supported by trestlework
    trimmer arch
    an arch built between trimmers in a floor (to support the weight of a hearth)
    triumphal arch
    a monumental archway; usually they are built to commemorate some notable victory
    truss bridge
    a bridge supported by trusses
    Tudor arch, four-centered arch
    a low elliptical or pointed arch; usually drawn from four centers
    a movable obstruction in a lock that must be adjusted to a given position (as by a key) before the bolt can be thrown
    an area sufficiently large for a vehicle to turn around
    a small tower extending above a building
    establishment where a seat of higher learning is housed, including administrative and living quarters as well as facilities for research and teaching
    gallery, veranda, verandah
    a porch along the outside of a building (sometimes partly enclosed)
    bridge consisting of a series of arches supported by piers used to carry a road (or railroad) over a valley
    an architectural partition with a height and length greater than its thickness; used to divide or enclose an area or to support another structure
    an observation tower for a lookout to watch over prisoners or watch for fires or enemies
    bagnio, bawdyhouse, bordello, brothel, cathouse, house of ill repute, house of prostitution, sporting house
    a building where prostitutes are available
    widow's walk
    a lookout atop a coastal house
    a symmetrical arrangement of the parts of a thing
    proportion, symmetry
    balance among the parts of something
    a paved or landscaped dividing area between opposing lanes of travel on a highway
    a building or compound used by a group carrying out religious and humanitarian work
    type of:
    artefact, artifact
    a man-made object taken as a whole
  2. noun
    the people in a society considered as a system organized by a characteristic pattern of relationships
    “sociologists have studied the changing structure of the family”
    synonyms: social organisation, social organization, social structure, social system
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    feudal system, feudalism
    the social system that developed in Europe in the 8th century; vassals were protected by lords who they had to serve in war
    patriarchate, patriarchy
    a form of social organization in which a male is the family head and title is traced through the male line
    matriarchate, matriarchy
    a form of social organization in which a female is the family head and title is traced through the female line
    a form of social system in which power goes to those with superior intellects
    a social organization in which diversity of racial or religious or ethnic or cultural groups is tolerated
    class structure
    the organization of classes within a society
    segregation, separatism
    a social system that provides separate facilities for minority groups
    caste system
    a social structure in which classes are determined by heredity
    racial segregation
    segregation by race
    de facto segregation
    segregation (especially in schools) that happens in fact although not required by law
    de jure segregation
    segregation that is imposed by law
    purdah, sex segregation
    the traditional Hindu or Muslim system of keeping women secluded
    white separatism
    a social system in which white people live separately from members of other races
    type of:
    scheme, system
    a group of independent but interrelated elements comprising a unified whole
  3. noun
    the complex composition of knowledge as elements and their combinations
    “his lectures have no structure
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    arrangement, organisation, organization, system
    an organized structure for arranging or classifying
    form, pattern, shape
    a perceptual structure
    phrase structure, sentence structure, syntax
    the grammatical arrangement of words in sentences
    morphology, sound structure, syllable structure, word structure
    the admissible arrangement of sounds in words
    classification system
    a system for classifying things
    an artificial or unnatural or obviously contrived arrangement of details or parts etc.
    coordinate system, frame of reference, reference frame, reference system
    a system that uses coordinates to establish position
    data structure
    (computer science) the organization of data (and its storage allocations in a computer)
    design, plan
    an arrangement scheme
    distribution, statistical distribution
    (statistics) an arrangement of values of a variable showing their observed or theoretical frequency of occurrence
    genetic map
    graphical representation of the arrangement of genes on a chromosome
    kinship system
    (anthropology) the system of social relationships that constitute kinship in a particular culture, including the terminology that is used and the reciprocal obligations that are entailed
    an arrangement of points or particles or objects in a regular periodic pattern in 2 or 3 dimensions
    living arrangement
    an arrangement to allow people (or ideas) to coexist
    (mathematics) a geometric pattern that is repeated at every scale and so cannot be represented by classical geometry
    a configuration or pattern of elements so unified as a whole that it cannot be described merely as a sum of its parts
    a pattern of regularly spaced horizontal and vertical lines
    a complex pattern of constantly changing colors and shapes
    a pattern resembling a mosaic
    a pattern forming a unity within a larger structural whole
    (computer science) a rigorous and exhaustive organization of some knowledge domain that is usually hierarchical and contains all the relevant entities and their relations
    the result of adding an affix to a root word
    a system of timekeeping that defines the beginning and length and divisions of the year
    type of:
    cognition, knowledge, noesis
    the psychological result of perception and learning and reasoning
  4. noun
    the manner of construction of something and the arrangement of its parts
    “artists must study the structure of the human body”
    “the structure of the benzene molecule”
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    infrastructure, substructure
    the basic structure or features of a system or organization
    architecture, computer architecture
    (computer science) the structure and organization of a computer's hardware or system software
    cytoarchitectonics, cytoarchitecture
    the cellular composition of a bodily structure
    fabric, framework
    the underlying structure
    CISC, complex instruction set computer, complex instruction set computing
    (computer science) a kind of computer architecture that has a large number of instructions hard coded into the CPU chip
    RISC, reduced instruction set computer, reduced instruction set computing
    (computer science) a kind of computer architecture that has a relatively small set of computer instructions that it can perform
    the underlying framework of something immaterial, especially a literary work
    type of:
    composition, constitution, make-up, makeup, physical composition
    the way in which someone or something is composed
  5. noun
    a particular complex anatomical part of a living thing
    “he has good bone structure
    synonyms: anatomical structure, bodily structure, body structure, complex body part
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    thin structure composed of a single thickness of cells
    ridge-like ingrowth of the exoskeleton of an arthropod that supports internal organs and provides attachment points for muscles
    caliculus, calycle, calyculus
    a small cup-shaped structure (as a taste bud or optic cup or cavity of a coral containing a polyp)
    toothlike structure in invertebrates found in the mouth or alimentary canal or on a shell
    the fleshy cushion-like underside of an animal's foot or of a human's finger
    branchial cleft, gill cleft, gill slit
    one of a series of slit openings in the pharynxes of fishes and aquatic amphibians through which water passes
    branchial arch, gill arch, gill bar
    one of the bony or cartilaginous arches on each side of the pharynx that support the gills of fishes and aquatic amphibians
    region around the mouth in various invertebrates
    the vocal organ of a bird
    a rounded dilation or expansion in a canal or vessel or organ
    any of various keel-shaped structures or ridges such as that on the breastbone of a bird or that formed by the fused petals of a pea blossom
    any taillike structure
    chiasm, chiasma, decussation
    an intersection or crossing of two tracts in the form of the letter X
    (anatomy) an encircling structure (as the ridge around the base of a tooth)
    (anatomy) a structure that resembles a shell in shape
    filament, filum
    a threadlike structure (as a chainlike series of cells)
    a small apparently simple structure (as a fertilized egg) from which new tissue can develop into a complete organism
    any of various funnel-shaped parts of the body (but especially the hypophyseal stalk)
    a small structural space between tissues or parts of an organ
    an anatomical structure used as a point of origin in locating other anatomical structures (as in surgery) or as point from which measurements can be taken
    a border or edge of any of various body parts distinguished by color or structure
    a riblike supporting or strengthening part of an animal or plant
    a broad flat body part (as of the shoulder or tongue)
    (anatomy) a small structure resembling a rootlet (such as a fibril of a nerve)
    plexus, rete
    a network of intersecting blood vessels or intersecting nerves or intersecting lymph vessels
    tube, tube-shaped structure
    (anatomy) any hollow cylindrical body structure
    passage, passageway
    a path or channel or duct through or along which something may pass
    (anatomy) the base of a hollow organ or that part of the organ farthest from its opening
    any of several body structure resembling a cord
    that part of a skeletal muscle that is away from the bone that it moves
    bodily cavity, cavity, cavum
    (anatomy) a natural hollow or sinus within the body
    root, tooth root
    the part of a tooth that is embedded in the jaw and serves as support
    a structure that encloses a body part
    the part of the eye that contains the iris and ciliary body and choroid
    lens nucleus, nucleus
    the central structure of the lens that is surrounded by the cortex
    membranous labyrinth
    the sensory structures of the inner ear including the labyrinthine receptors and the cochlea; contained within the bony labyrinth
    bony labyrinth, osseous labyrinth
    cavity in the petrous part of the temporal bone that contains the membranous labyrinth
    a small rounded structure; especially that at the end of the penis or clitoris
    alveolar bed
    lung tissue densely packed with alveoli
    a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
    vascular structure
    a structure composed of or provided with blood vessels
    lacrimal apparatus
    the structures that secrete and drain tears from the eye
    a microscopic network of actin filaments and microtubules in the cytoplasm of many living cells that gives the cell shape and coherence
    nucleolar organiser, nucleolar organizer, nucleolus organiser, nucleolus organizer
    the particular part of a chromosome that is associated with a nucleolus after nuclear division
    centromere, kinetochore
    a specialized condensed region of each chromosome that appears during mitosis where the chromatids are held together to form an X shape
    star-shaped structure formed in the cytoplasm of a cell having fibers like rays that surround the centrosome during mitosis
    neural structure
    a structure that is part of the nervous system
    fold, plica
    a folded part (as in skin or muscle)
    convolution, gyrus
    a convex fold or elevation in the surface of the brain
    cartilaginous structure
    body structure given shape by cartilage
    a more or less rounded anatomical body or mass
    any flat platelike body structure or part
    horny structure, unguis
    any rigid body structure composed primarily of keratin
    skeletal structure
    any structure created by the skeleton of an organism
    a riblike part of a plant or animal (such as a middle rib of a leaf or a thickened vein of an insect wing)
    the rounded end of a bone that fits into a rounded cavity in another bone to form a joint
    the hard ridge that forms the upper part of the nose
    rotator cuff
    a supporting structure of the shoulder consisting of the muscles and tendons that attach the arm to the shoulder joint and enable the arm to move
    (anatomy) any structure that resembles a horn in shape
    (anatomy) any structure that resembles a crown in shape
    a cellular structure that is postulated to exist in order to mediate between a chemical agent that acts on nervous tissue and the physiological response
    zona, zone
    (anatomy) any encircling or beltlike structure
    a protective or defensive covering of a plant or animal
    blastocele, blastocoel, blastocoele, cleavage cavity, segmentation cavity
    the fluid-filled cavity inside a blastula
    blastoderm, blastodisc, germinal area, germinal disc
    a layer of cells on the inside of the blastula
    central cavity of the gastrula; becomes the intestinal or digestive cavity
    layer of cells that secretes the chitinous cuticle in e.g. arthropods
    vane, web
    the flattened weblike part of a feather consisting of a series of barbs on either side of the shaft
    a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted
    ciliated comb-like swimming plate of a ctenophore
    the horny covering of the end of the foot in ungulate mammals
    eyecup, optic cup
    (embryology) a two-walled cuplike depression that develops into the pigmented and sensory layers of the retina
    small pointed ridge on the exoskeleton of an arthropod
    sharp curved horny process on the toe of a bird or some mammals or reptiles
    calamus, quill, shaft
    the hollow spine of a feather
    nervure, vein
    one of the horny ribs that stiffen and support the wing of an insect
    birth canal
    a passage in the uterus and vagina through which a fetus passes during vaginal birth
    carina fornicis
    ridge on the lower surface of the fornix of the brain
    corpus mamillare, mamillary body, mammillary body
    one of two small round structures on the undersurface of the brain that form the terminals of the anterior arches of the fornix
    the median ridge on the breastbone of birds that fly
    chiasma opticum, optic chiasm, optic chiasma
    the crossing of the optic nerves from the two eyes at the base of the brain
    nasal concha
    one of several turbinate bones in the nasal cavity
    craniometric point
    a landmark on the skull from which craniometric measurements can be taken
    aortic plexus
    a plexus of lymph nodes in the lower portion of the abdominal aorta
    nerve plexus
    a network of intersecting nerves
    a small tube
    a tube in the uterus or the ear
    malpighian body, malpighian corpuscle, renal corpuscle
    the capsule that contains Bowman's capsule and a glomerulus at the expanded end of a nephron
    a natural body passageway
    opening, orifice, porta
    an aperture or hole that opens into a bodily cavity
    canal, channel, duct, epithelial duct
    a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
    any of various air-filled cavities especially in the bones of the skull
    tiny endothelium-lined passages for blood in the tissue of an organ
    locule, loculus
    a small cavity or space within an organ or in a plant or animal
    a cavity or passage in a tubular organ
    hair, pilus
    any of the cylindrical filaments characteristically growing from the epidermis of a mammal
    carpal tunnel
    a passageway in the wrist through which nerves and the flexor muscles of the hands pass
    a bony hollow into which a structure fits
    pulp cavity
    the central cavity of a tooth containing the pulp (including the root canal)
    cranial orbit, eye socket, orbit, orbital cavity
    the bony cavity in the skull containing the eyeball
    an encapsulated neural structure consisting of a collection of cell bodies of neurons
    a flap of cartilage that covers the windpipe while swallowing
    buccal cavity
    the cavity between the jaws and the cheeks
    a natural cavity or hollow in a bone
    (zoology) the cavity (in birds, reptiles, amphibians, most fish, and monotremes but not mammals) at the end of the digestive tract into which the intestinal, genital, and urinary tracts open
    any of various bodily cavities leading to another cavity (as of the ear or vagina)
    root canal
    the passage in the root of a tooth through which its nerve and blood vessels enter the pulp cavity
    the soft inner part of a tooth
    epicanthic fold, epicanthus
    a vertical fold of skin over the nasal canthus; normal for Mongolian peoples; sometimes occurs in Down's syndrome
    eyeball, orb
    the ball-shaped capsule containing the vertebrate eye
    auricle, ear, pinna
    the externally visible cartilaginous structure of the external ear
    a small cartilaginous flap in front of the external opening of the ear
    the part of the thoracic cavity between the lungs that contains the heart and aorta and esophagus and trachea and thymus
    middle ear, tympanic cavity, tympanum
    the main cavity of the ear; between the eardrum and the inner ear
    lens capsule
    a tenuous mesoblastic membrane surrounding the lens of the eye
    the snail-shaped tube (in the inner ear coiled around the modiolus) where sound vibrations are converted into nerve impulses by the organ of Corti
    glans clitoridis
    small mass of erectile tissue at the end of the body of the clitoris
    glans penis
    the conical mass of erectile tissue that forms the head of the penis
    pleural cavity
    the cavity in the thorax that contains the lungs and heart
    an enclosed volume in the body
    cranial cavity, intracranial cavity
    the cavity enclosed by the cranium
    cardiac valve, heart valve
    a valve to control one-way flow of blood
    valvelet, valvula, valvule
    a small valve
    vas, vessel
    a tube in which a body fluid circulates
    amniotic cavity
    the fluid-filled cavity that surrounds the developing embryo
    greater peritoneal sac, peritoneal cavity
    the interior of the peritoneum; a potential space between layers of the peritoneum
    bursa omentalis, lesser peritoneal cavity, omental bursa
    an isolated part of the peritoneal cavity that is dorsal to the stomach
    pericardial cavity, pericardial space
    the space between the layers of the pericardium that contains fluid that lubricates the membrane surfaces and allows easy heart movement
    a tiny cavity filled with fluid in the cytoplasm of a cell
    reflex arc
    the neural path of a reflex
    center, centre, nerve center, nerve centre
    a cluster of nerve cells governing a specific bodily process
    cerebral hemisphere, hemisphere
    either half of the cerebrum
    piriform area, piriform lobe, pyriform area, pyriform lobe
    pear-shaped neural structure on either side of the brain in the rhinencephalon
    olfactory bulb
    one of two enlargements at the terminus of the olfactory nerve at the base of the brain just above the nasal cavities
    brain, encephalon
    that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord
    neencephalon, neoencephalon
    the part of the brain having the most recent phylogenetic origin; the cerebral cortex and related parts
    palaeencephalon, paleencephalon, paleoencephalon
    the more primitive parts of the brain phylogenetically; most structures other than the cerebral cortex
    hypophyseal stalk
    the funnel-shaped stalk connecting the pituitary gland to the hypothalamus
    a major division of the vertebrate brain; situated above the medulla oblongata and beneath the cerebrum in humans
    cerebellar hemisphere
    either of two lateral lobes of the cerebellum
    vermis, vermis cerebelli
    the narrow central part of the cerebellum between the two hemispheres
    the anterior lobe of the cerebellum which was one of the earliest parts of the hindbrain to develop in mammals
    cerebral cortex, cerebral mantle, cortex, pallium
    the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum
    geniculate body
    one of four small oval masses that protrude slightly from the underside of the thalamus and function as synaptic centers on the way to the cerebral cortex
    frontal gyrus
    any of the convolutions of the outer surface of the frontal lobe of the cerebrum
    temporal gyrus
    any of the convolutions of the outer surface of the temporal lobe of the cerebrum
    parietal gyrus
    any of the convolutions of the outer surface of the parietal lobe of the cerebrum
    occipital gyrus
    any of the convolutions of the outer surface of the occipital lobe of the cerebrum
    anterior portion of the brain consisting of two hemispheres; dominant part of the brain in humans
    central gyrus
    either of two gyri on either side of the central sulcus
    bulb, medulla, medulla oblongata
    lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata)
    forebrain, prosencephalon
    the anterior portion of the brain; the part of the brain that develops from the anterior part of the neural tube
    a complex neural structure (shaped like a sea horse) consisting of grey matter and located on the floor of each lateral ventricle; intimately involved in motivation and emotion as part of the limbic system; has a central role in the formation of memories
    cingulate gyrus, gyrus cinguli
    a long curved structure on the medial surface of the cerebral hemispheres; the cortical part of the limbic system
    the anterior division of the forebrain; the cerebrum and related parts of the hypothalamus
    betweenbrain, diencephalon, interbrain, thalmencephalon
    the posterior division of the forebrain; connects the cerebral hemispheres with the mesencephalon
    limbic brain, limbic system, visceral brain
    a system of functionally related neural structures in the brain that are involved in emotional behavior
    the ventral part of the thalamus
    large egg-shaped structures of grey matter that form the dorsal subdivision of the diencephalon
    a basal part of the diencephalon governing autonomic nervous system
    mesencephalon, midbrain
    the middle portion of the brain
    locus niger, nucleus niger, substantia nigra
    a layer of deeply pigmented grey matter in the midbrain; associated with the striate body; is involved in metabolic disturbances associated with Parkinson's disease and with Huntington's disease
    hindbrain, rhombencephalon
    the posterior portion of the brain including cerebellum and brainstem
    the posterior part of the hindbrain in developing vertebrates; forms the medulla oblongata in adults
    pons, pons Varolii
    a band of nerve fibers linking the medulla oblongata and the cerebellum with the midbrain
    brain stem, brain-stem, brainstem
    the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus
    any histologically identifiable mass of neural cell bodies in the brain or spinal cord
    one of four connected cavities in the brain; is continuous with the central canal of the spinal cord and contains cerebrospinal fluid
    a radial arrangement of nerve fibers connecting different parts of the brain
    medulla spinalis, spinal cord
    a major part of the central nervous system which conducts sensory and motor nerve impulses to and from the brain; a long tubelike structure extending from the base of the brain through the vertebral canal to the upper lumbar region
    ANS, autonomic nervous system
    the part of the nervous system of vertebrates that controls involuntary actions of the smooth muscles and heart and glands
    choroid plexus, plexus choroideus
    a vascular plexus of the cerebral ventricles that regulate intraventricular pressure
    lumbar plexus, plexus lumbalis
    a lymphatic plexus located along the lower portion of the aorta and iliac vessels
    pterygoid plexus
    a plexus of veins draining the region of the pterygoid muscles and draining into the internal maxillary and anterior facial veins
    a structure resembling a bag in an animal
    uterine cavity
    the space inside the uterus between the cervical canal and the Fallopian tubes
    umbilical, umbilical cord
    membranous duct connecting the fetus with the placenta
    the vascular structure in the uterus of most mammals providing oxygen and nutrients for and transferring wastes from the developing fetus
    rete testis
    network of tubules carrying sperm from the seminiferous tubules to the vasa efferentia
    spermatic cord
    a structure resembling a cord that suspends the testis within the scrotum and contains the vas deferens and other vessels and nerves
    nasal cavity
    either of the two cavities lying between the floor of the cranium and the roof of the mouth and extending from the face to the pharynx
    cavity forming the upper part of the pharynx
    cavity formed by the pharynx at the back of the mouth
    the lower part of the pharynx
    larynx, voice box
    a cartilaginous structure at the top of the trachea; contains elastic vocal cords that are the source of the vocal tone in speech
    plica vocalis, vocal band, vocal cord, vocal fold
    either of two pairs of folds of mucous membrane projecting into the larynx
    esophagus, gorge, gullet, oesophagus
    the passage between the pharynx and the stomach
    the short part of the esophagus extending downward from the diaphragm to the stomach
    blind gut, caecum, cecum
    the cavity in which the large intestine begins and into which the ileum opens
    ileocecal valve
    valve between the ileum of the small intestine and the cecum of the large intestine; prevents material from flowing back from the large to the small intestine
    (paleontology) a bony plate that curves upward behind the skull of many ceratopsian dinosaurs
    the passage between the back of the mouth and the pharynx
    fistula, sinus
    an abnormal passage leading from a suppurating cavity to the body surface
    a passage by which a bodily fluid (especially blood) is diverted from one channel to another
    tubular cavity
    a cavity having the shape of a tube
    armpit, axilla, axillary cavity, axillary fossa
    the hollow under the arm where it is joined to the shoulder
    chest cavity, thoracic cavity
    the cavity in the vertebrate body enclosed by the ribs between the diaphragm and the neck and containing the lungs and heart
    rib cage
    the bony enclosing wall of the chest
    small space in a tissue or body part such as the area between veins on a leaf or an insect's wing
    abdomen, abdominal cavity
    the cavity containing the major viscera; in mammals it is separated from the thorax by the diaphragm
    a curved bony structure supporting or enclosing organs (especially the inner sides of the feet)
    the back part of the human foot
    an encircling or ringlike structure
    a thin plate or layer (especially of bone or mineral)
    horny plate covering and protecting part of the dorsal surface of the digits
    any tubular or pillar-like supporting structure in the body
    appendicular skeleton
    the part of the skeleton that includes the pectoral girdle and the pelvic girdle and the upper and lower limbs
    axial skeleton
    the part of the skeleton that includes the skull and spinal column and sternum and ribs
    back, backbone, rachis, spinal column, spine, vertebral column
    the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
    costal cartilage
    the cartilages that connect the sternum and the ends of the ribs; its elasticity allows the chest to move in respiration
    the part of the hand between the carpus and phalanges
    the skeleton of the human foot between the toes and the tarsus; the corresponding part of the foot in birds or of the hind foot in quadrupeds
    the part of the foot of a vertebrate between the metatarsus and the leg; in human beings the bones of the ankle and heel collectively
    pelvis, renal pelvis
    a structure shaped like a funnel in the outlet of the kidney into which urine is discharged before passing into the ureter
    pelvic cavity
    the space bounded by the bones of the pelvis and containing the pelvic viscera
    celom, celoma, coelom
    a cavity in the mesoderm of an embryo that gives rise in humans to the pleural cavity and pericardial cavity and peritoneal cavity
    (anatomy) a fold or wrinkle or crease
    (anatomy) a fold of dura mater that covers the cerebellum and supports the occipital lobes of the cerebrum
    zona pellucida
    thick membrane around the mammalian ovum; can be penetrated by one sperm in the fertilization process; usually remains around the fertilized egg until it is implanted in the wall of the uterus
    alpha receptor, alpha-adrenergic receptor, alpha-adrenoceptor
    receptors postulated to exist on nerve cell membranes of the sympathetic nervous system in order to explain the specificity of certain agents that affect only some sympathetic activities (such as vasoconstriction and relaxation of intestinal muscles and contraction of smooth muscles)
    beta receptor, beta-adrenergic receptor, beta-adrenoceptor
    receptors postulated to exist on nerve cell membranes of the sympathetic nervous system in order to explain the specificity of certain agents that affect only some sympathetic activities (such as vasodilation and increased heart beat)
    zonula, zonule
    small beltlike zone
    fossa, pit
    a concavity in a surface (especially an anatomical depression)
    type of:
    body part
    any part of an organism such as an organ or extremity
  6. verb
    give a structure to
    “I need to structure my days”
    see moresee less
    reconstitute, restructure
    construct or form anew or provide with a new structure
    type of:
    coordinate, organise, organize
    bring order and organization to
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