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A room or set of rooms, particularly:
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(obsolete) Ellipsis of chamber pot: a container used for urination and defecation in one's chambers.
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(figuratively) The legislature or division of the legislature itself.
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Any enclosed space occupying or similar to a room.
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(biology) An enlarged space in an underground tunnel of a burrowing animal.
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(firearms) The area holding the ammunition round at the initiation of its discharge.
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(firearms) One of the bullet-holding compartments in the cylinder of a revolver.
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(historical) A short piece of ordnance or cannon which stood on its breech without any carriage, formerly used chiefly for celebrations and theatrical cannonades.
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One of the two atria or two ventricles of the heart.