A chamber is an enclosed space, often where a specific event usually takes place — such as a sleeping chamber or a torture chamber.

The history of the word chamber is an interesting one. The Latin word for room was camera. The original word for camera was camera obscura, or "dark chamber," since it was a big black box. Now, the word chamber can refer to any enclosed space — such as the chamber of a gun or the four chambers of your heart.

Definitions of chamber
  1. noun
    a natural or artificial enclosed space
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    Holy Sepulcher
    the sepulcher in which Christ's body lay between burial and resurrection
    Mausoleum at Halicarnasus
    a white marble mausoleum 140 feet high built in 352 BC at Halicarnassus as a memorial to a king; destroyed in 1402
    Taj Mahal
    beautiful mausoleum at Agra built by the Mogul emperor Shah Jahan (completed in 1649) in memory of his favorite wife
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    air lock, airlock
    a chamber that provides access to space where air is under pressure
    air-raid shelter, bomb shelter, bombproof
    a chamber (often underground) reinforced against bombing and provided with food and living facilities; used during air raids
    burial chamber, sepulcher, sepulchre, sepulture
    a chamber that is used as a grave
    caisson, cofferdam, pneumatic caisson
    large watertight chamber used for construction under water
    camera obscura
    a darkened enclosure in which images of outside objects are projected through a small aperture or lens onto a facing surface
    the chamber of a nuclear reactor containing the fissile material where the reaction takes place
    cylinder, piston chamber
    a chamber within which piston moves
    firing chamber, gun chamber
    chamber that is the part of a gun that receives the charge
    an enclosed chamber in which heat is produced to heat buildings, destroy refuse, smelt or refine ores, etc.
    hyperbaric chamber
    a large chamber in which the oxygen pressure is above normal for the atmosphere; used in treating breathing disorders or carbon monoxide poisoning
    particle detector
    a chamber in which particles can be made visible
    cavity resonator, resonating chamber, resonator
    a hollow chamber whose dimensions allow the resonant oscillation of electromagnetic or acoustic waves
    steam chest
    the chamber from which steam is distributed to a cylinder
    fireroom, stokehold, stokehole
    (nautical) chamber or compartment in which the furnaces of a ship are stoked or fired
    packing box, stuffing box
    a small chamber in which packing is compressed around a reciprocating shaft or piston to form a seal
    a doughnut-shaped chamber used in fusion research; a plasma is heated and confined in a magnetic bottle
    vacuum chamber
    a chamber from which nearly all matter (especially air) has been removed
    a furnace that feeds itself so as to maintain a uniform temperature; used by alchemists
    blast furnace
    a furnace for smelting of iron from iron oxide ores; combustion is intensified by a blast of air
    brake cylinder, hydraulic brake cylinder, master cylinder
    a cylinder that contains brake fluid that is compressed by a piston
    bubble chamber
    an instrument that records the tracks of ionizing particles
    Wilson cloud chamber, cloud chamber
    apparatus that detects the path of high-energy particles passing through a supersaturated vapor; each particle ionizes molecules along its path and small droplets condense on them to produce a visible track
    cremation chamber, crematorium, crematory
    a furnace where a corpse can be burned and reduced to ashes
    a cellar or vault or underground burial chamber (especially beneath a church)
    a vertical cylindrical furnace for melting iron for casting
    electric furnace
    any furnace in which the heat is provided by an electric current
    a furnace (as on a steam locomotive) in which fuel is burned
    furnace consisting of a special hearth where metal is heated before shaping
    gas furnace
    a furnace that burns gas
    a furnace for incinerating (especially to dispose of refuse)
    a furnace for firing or burning or drying such things as porcelain or bricks
    a large burial chamber, usually above ground
    oil burner, oil furnace
    a furnace that burns oil
    open-hearth furnace
    a furnace for making steel in which the steel is placed on a shallow hearth and flames of burning gas and hot air play over it
    monument, repository
    a burial vault (usually for some famous person)
    reverberatory furnace
    a furnace in which the material that is being treated is heated indirectly by flames that are directed at the roof and walls of the furnace
    body, soundbox
    a resonating chamber in a musical instrument (as the body of a violin)
    soundboard, sounding board
    (music) resonator consisting of a thin board whose vibrations reinforce the sound of the instrument
    spark chamber, spark counter
    an instrument that detects ionizing radiation from elementary particles
    tank furnace
    furnace into one end of which a batch of measured raw materials is shoveled and from the other end molten glass is obtained
    burial vault, vault
    a burial chamber (usually underground)
    type of:
    a structure consisting of an area that has been enclosed for some purpose
  2. noun
    a room where a judge transacts business
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    divan, diwan
    a Muslim council chamber or law court
    type of:
    an area within a building enclosed by walls and floor and ceiling
  3. noun
    a room used primarily for sleeping
    synonyms: bedchamber, bedroom, sleeping accommodation, sleeping room
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    a lady's bedroom or private sitting room
    child's room
    a bedroom for a child
    dorm room, dormitory, dormitory room
    a large sleeping room containing several beds
    a bedroom that is kept for the use of guests
    hotel room
    a bedroom (usually with bath) in a hotel
    master bedroom
    the principal bedroom in a house; usually occupied by the head of the household
    motel room
    a sleeping room in a motel
    adjoining room
    a hotel room that shares a wall with another hotel room
    connecting room
    a hotel room that shares a wall with an adjoining room and is connected by a private door
    baby's room, nursery
    a child's room for a baby
    type of:
    an area within a building enclosed by walls and floor and ceiling
  4. noun
    an enclosed volume in the body
    “the chambers of his heart were healthy”
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    heart ventricle, ventricle
    a chamber of the heart that receives blood from an atrium and pumps it to the arteries
    any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart)
    left ventricle
    the chamber on the left side of the heart that receives arterial blood from the left atrium and pumps it into the aorta
    right ventricle
    the chamber on the right side of the heart that receives venous blood from the right atrium and pumps it into the pulmonary trunk
    atrium cordis, atrium of the heart
    the upper chamber of each half of the heart
    type of:
    bodily cavity, cavity, cavum
    (anatomy) a natural hollow or sinus within the body
  5. verb
    place in a chamber
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    type of:
    domiciliate, house, put up
    provide housing for
  6. noun
    a deliberative or legislative or administrative or judicial assembly
    “the upper chamber is the senate”
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    type of:
    a group of persons who are gathered together for a common purpose
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