Definition of: chamber

(chām′bər) noun
1. A room in a dwelling house; especially, a bedroom.
2. plural A suite of rooms or offices for the use of one person; specifically, a lawyer's or judge's office or apartment.
3. Lodgings.
4. A hall where an assembly or council meets; also, the assembly itself: the chamber of commerce.
5. The popular branch of a legislature.
6. An enclosed space at the breech of a gun containing the explosive charge; also, one of the cavities in the cartridge cylinder of a revolver.
7. A room in which a monarch or other great personage gives audience.
8. Anat. A space enclosing the aqueous humor of the eye, separated by the iris into an anterior and a posterior chamber.
9. A chamber pot.
10. A lock on a canal.
—cloud chamber Physics An enclosed receptacle containing air or gas saturated with water vapor whose sudden cooling indicates the presence of ions as condensation nuclei of water droplets. The movements of these nuclei are revealed by the cloud tracks marked out by the droplets. Also expansion chamber, fog chamber.
—lower chamber The lower house of a bicameral legislature.
—upper chamber The upper house of a bicameral legislature.
—v.t.
1. To make chambers in, as a gun.
2. To fit into a chamber; also, to fit compactly, as shot in a cartridge. [<F chambre <L camera vaulted room <Gk. kamara. Doublet of CAMERA.]
—cham′·bered adjective