natural object

Definitions of natural object
  1. noun
    an object occurring naturally; not made by man
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    Antonyms:
    artefact, artifact
    a man-made object taken as a whole
    types:
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    cocoon
    silky envelope spun by the larvae of many insects to protect pupas and by spiders to protect eggs
    body, organic structure, physical structure
    the entire structure of an organism (an animal, plant, or human being)
    body, dead body
    a natural object consisting of a dead animal or person
    asterism
    (astronomy) a cluster of stars (or a small constellation)
    black body, blackbody, full radiator
    a hypothetical object capable of absorbing all the electromagnetic radiation falling on it
    body
    an individual 3-dimensional object that has mass and that is distinguishable from other objects
    carpet
    a natural object that resembles or suggests a carpet
    celestial body, heavenly body
    a natural object visible in the sky
    consolidation
    something that has consolidated into a compact mass
    constellation
    a configuration of stars as seen from the earth
    cover, covering, natural covering
    a natural object that covers or envelops
    estraterrestrial body, extraterrestrial object
    a natural object existing outside the earth and outside the earth's atmosphere
    mechanism
    a natural object resembling a machine in structure or function
    nest
    a structure in which animals lay eggs or give birth to their young
    radiator
    any object that radiates energy
    rock, stone
    a lump or mass of hard consolidated mineral matter
    sample
    all or part of a natural object that is collected and preserved as an example of its class
    tangle
    a twisted and tangled mass that is highly interwoven
    cosmos, creation, existence, macrocosm, universe, world
    everything that exists anywhere
    plant part, plant structure
    any part of a plant or fungus
    carcase, carcass
    the dead body of an animal especially one slaughtered and dressed for food
    carrion
    the dead and rotting body of an animal; unfit for human food
    roadkill
    the dead body of an animal that has been killed on a road by a vehicle
    scale
    a flattened rigid plate forming part of the body covering of many animals
    shell
    the hard largely calcareous covering of a mollusc or a brachiopod
    test
    a hard outer covering as of some amoebas and sea urchins
    life form
    the characteristic bodily form of a mature organism
    anatomy, bod, build, chassis, figure, flesh, form, frame, human body, material body, physical body, physique, shape, soma
    alternative names for the body of a human being
    cadaver, clay, corpse, remains, stiff
    the dead body of a human being
    mummy
    a body embalmed and dried and wrapped for burial (as in ancient Egypt)
    live body
    the body of a living animal or person
    body covering
    any covering for the body or a body part
    case, sheath
    an enveloping structure or covering enclosing an animal or plant organ or part
    integument
    an outer protective covering such as the skin of an animal or a cuticle or seed coat or rind or shell
    specimen
    a bit of tissue or blood or urine that is taken for diagnostic purposes
    chromosome
    a threadlike strand of DNA in the cell nucleus that carries the genes in a linear order
    achondrite
    a stony meteor lacking chondrules
    barrier
    anything serving to maintain separation by obstructing vision or access
    bedrock
    solid unweathered rock lying beneath surface deposits of soil
    beehive, hive
    a structure that provides a natural habitation for bees; as in a hollow tree
    bird nest, bird's nest, birdnest
    nest where birds lay their eggs and hatch their young
    blanket, mantle
    anything that covers
    boulder, bowlder
    a large smooth mass of rock detached from its place of origin
    calculus, concretion
    a hard lump produced by the concretion of mineral salts; found in hollow organs or ducts of the body
    chondrite
    a rock of meteoric origin containing chondrules
    clastic rock
    (geology) a rock composed of broken pieces of older rocks
    closed universe
    (cosmology) a universe that is spatially closed and in which there is sufficient matter to halt the expansion that began with the big bang; the visible matter is only 10 percent of the matter required for closure but there may be large amounts of dark matter
    comet
    (astronomy) a relatively small extraterrestrial body consisting of a frozen mass that travels around the sun in a highly elliptical orbit
    core
    a cylindrical sample of soil or rock obtained with a hollow drill
    crust, encrustation, incrustation
    a hard outer layer that covers something
    crystal, crystallisation, crystallization
    a rock formed by the solidification of a substance; has regularly repeating internal structure; external plane faces
    drey
    the nest of a squirrel
    envelope
    a natural covering (as by a fluid)
    hair ball, hairball, trichobezoar
    a compact mass of hair that forms in the alimentary canal (especially in the stomach of animals as a result of licking fur)
    cap, hood
    a protective covering that is part of a plant
    cellular inclusion, inclusion, inclusion body
    any small intracellular body found within another (characteristic of certain diseases)
    indument, indumentum
    a covering of fine hairs (or sometimes scales) as on a leaf or insect
    intrusion
    rock produced by an intrusive process
    mass
    a body of matter without definite shape
    meteor, meteoroid
    (astronomy) any of the small solid extraterrestrial bodies that hits the earth's atmosphere
    minor planet, planetoid
    any of numerous small celestial bodies that move around the sun
    mouse nest, mouse's nest
    where mice bear and raise their young
    natural order
    the physical universe considered as an orderly system subject to natural (not human or supernatural) laws
    nature
    the natural physical world including plants and animals and landscapes etc.
    nidus
    a nest in which spiders or insects deposit their eggs
    outcrop, outcropping, rock outcrop
    the part of a rock formation that appears above the surface of the surrounding land
    particle, subatomic particle
    a body having finite mass and internal structure but negligible dimensions
    pebble
    a small smooth rounded rock
    petrifaction
    a rock created by petrifaction; an organic object infiltrated with mineral matter and preserved in its original form
    major planet, planet
    (astronomy) any of the nine large celestial bodies in the solar system that revolve around the sun and shine by reflected light; Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto in order of their proximity to the sun; viewed from the constellation Hercules, all the planets rotate around the sun in a counterclockwise direction
    planet
    any celestial body (other than comets or satellites) that revolves around a star
    planetesimal
    one of many small solid celestial bodies thought to have existed at an early stage in the development of the solar system
    primary
    (astronomy) a celestial body (especially a star) relative to other objects in orbit around it
    quasar, quasi-stellar radio source
    a starlike object that may send out radio waves and other forms of energy; many have large red shifts
    radio source
    an object that radiates radio waves
    roof
    the inner top surface of a covered area or hollow space
    satellite
    any celestial body orbiting around a planet or star
    shag
    a matted tangle of hair or fiber
    shell
    a rigid covering that envelops an object
    eggshell, shell
    the exterior covering of a bird's egg
    sill
    (geology) a flat (usually horizontal) mass of igneous rock between two layers of older sedimentary rock
    skim
    a thin layer covering the surface of a liquid
    slough
    any outer covering that can be shed or cast off (such as the cast-off skin of a snake)
    snowcap
    a covering of snow (as on a mountain peak)
    star
    (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior
    star
    any celestial body visible (as a point of light) from the Earth at night
    stepping stone
    a stone in a marsh or shallow water that can be stepped on in crossing
    stub
    a short piece remaining on a trunk or stem where a branch is lost
    tor
    a prominent rock or pile of rocks on a hill
    transmission mechanism
    any mechanism whereby an infectious agent is spread from a reservoir to a human being
    vesture
    something that covers or cloaks like a garment
    wall rock
    a rock immediately adjacent to a vein or fault
    whin, whinstone
    any of various hard colored rocks (especially rocks consisting of chert or basalt)
    xenolith
    (geology) a piece of rock of different origin from the igneous rock in which it is embedded
    button
    any of various plant parts that resemble buttons
    thallus
    a plant body without true stems or roots or leaves or vascular system; characteristic of the thallophytes
    cap, pileus
    a fruiting structure resembling an umbrella or a cone that forms the top of a stalked fleshy fungus such as a mushroom
    calyptra
    the hood or cap covering the calyx of certain plants: e.g., the California poppy
    volva
    cuplike structure around the base of the stalk of certain fungi
    peridium
    outer layer of the spore-bearing organ in many fungi
    domatium
    a part of a plant (e.g., a leaf) that has been modified to provide protection for insects or mites or fungi
    pycnidium
    flask-shaped asexual structure containing conidia
    stipule
    a small leafy outgrowth at the base of a leaf or its stalk; usually occurring in pairs and soon shed
    tepal
    an undifferentiated part of a perianth that cannot be distinguished as a sepal or a petal (as in lilies and tulips)
    gynostegium
    the crown of the stamen in plants of the genus Asclepias
    chalaza
    basal part of a plant ovule opposite the micropyle; where integument and nucellus are joined
    nucellus
    central part of a plant ovule; contains the embryo sac
    germ tube
    (botany) a slender tubular outgrowth from a spore in germination
    pollen tube
    (botany) a slender tubular outgrowth from a pollen grain when deposited on the stigma for a flower; it penetrates the style and conveys the male gametes to the ovule
    pericarp, seed vessel
    the ripened and variously modified walls of a plant ovary
    mentum
    a projection like a chin formed by the sepals and base of the column in some orchids
    corona
    (botany) the trumpet-shaped or cup-shaped outgrowth of the corolla of a daffodil or narcissus flower
    lip
    (botany) either of the two parts of a bilabiate corolla or calyx
    chlamys, floral envelope, perianth, perigone, perigonium
    collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils
    mycelium
    the vegetative part of a fungus consisting of a mass of branching threadlike hyphae
    plant organ
    a functional and structural unit of a plant or fungus
    aril
    fleshy and usually brightly colored cover of some seeds that develops from the ovule stalk and partially or entirely envelopes the seed
    duct
    a continuous tube formed by a row of elongated cells lacking intervening end walls
    sac, theca
    a case or sheath especially a pollen sac or moss capsule
    indusium
    a membrane enclosing and protecting the developing spores especially that covering the sori of a fern
    veil, velum
    a membranous covering attached to the immature fruiting body of certain mushrooms
    annulus, skirt
    (Fungi) a remnant of the partial veil that in mature mushrooms surrounds the stem like a collar
    plant tissue
    the tissue of a plant
    tendril
    slender stem-like structure by which some twining plants attach themselves to an object for support
    stump, tree stump
    the base part of a tree that remains standing after the tree has been felled
    prophyll
    a plant structure resembling a leaf
    stock
    a plant or stem onto which a graft is made; especially a plant grown specifically to provide the root part of grafted plants
    receptacle
    enlarged tip of a stem that bears the floral parts
    kernel, meat
    the inner and usually edible part of a seed or grain or nut or fruit stone
    lobe
    (botany) a part into which a leaf is divided
    ligule
    (botany) any appendage to a plant that is shaped like a strap
    bark
    tough protective covering of the woody stems and roots of trees and other woody plants
    biological clock
    an innate mechanism in living organisms that controls the periodicity of many physiological functions
    canopy
    the uppermost layer of branches and foliage in a forest
    type of:
    unit, whole
    an assemblage of parts that is regarded as a single entity
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