An enclosed space or cavity in the body of an animal or plant; spec. a ventricle or atrium of the heart.

An (imaginary) cavity or compartment in the brain: = cell, n.1 7a. Obsolete.

Each of a number of spaces into which an object or surface is divided; a pane, a panel; a compartment, chamber, or room. Also figurative.

An area separated, demarcated, or enclosed by a curtain, screen, or partition; esp. a cubicle or compartment set aside for the use of a particular…

gen. Any one of a number of small compartments or niches into which a larger structure is divided, as a compartment of a dovecote, a section of a…

One of the chambers or cells of a series: esp. said of chambered shells.

A separate division of any enclosure; a compartment. Obsolete.

A receptacle, a cell; spec. (Christian Church) = burse, n. 1b.

concrete. A compartment. Obsolete. rare.

A space or chamber partitioned off. In other applications: e.g. one of the watertight divisions of a large ship.

A small partitioned space for working, sleeping, etc.; a cubicle; spec. (in later use) an office compartment that is part of a larger open-plan…

A bedchamber: in the general sense obsolete since the 16th cent., but re-introduced in modern use, esp. in English public schools, for one of the…