1. A room in a house, especially a bedroom.
2. A room where a person of authority, rank, or importance receives visitors.
3. A room in which a judge may consult privately with attorneys or hear cases not taken into court.
4. chiefly british A suite of rooms, especially one used by lawyers.
5. A hall for the meetings of a legislative or other assembly.
6. A legislative or judicial body.
7. A board or council.
8. A place where municipal or state funds are received and held; a treasury.
9. an enclosed space or compartment: the chamber of a pump; a compression chamber.
10. an enclosed space in the body of an organism; a cavity: the four chambers of the heart.
11. A compartment in a firearm, as in the breech of a rifle or the cylinder of a revolver, that holds the cartridge in readiness for firing.
12. an enclosed space in the bore of a gun that holds the charge.
13. to put in or as if in a chamber; enclose or confine.
14. to furnish with a chamber.
15. to design or manufacture (a firearm) to hold a specific type of cartridge.

1. A room, especially one used primarily for sleeping; bedroom, sleeping room.
2. an enclosed space. for example, a test chamber is typically a closable case where devices under test are placed.
3. in a firearm, this is the portion of the weapon that holds the ammunition round immediately prior to (and during initiation of) its discharge.
4. one of the legislative bodies in a government where multiple such bodies exist, or a single such body in comparison to others.
5. to enclose in a room.
6. to place in a chamber, as a round of ammunition.
7. to create or modify a gun to be a specific caliber.
8. in martial arts, to prepare an offensive, defensive, or counteroffensive action by drawing a limb or weapon to a position where it may be charged with kinetic energy.

1. A retired room, esp. an upper room used for sleeping; a bedroom.
2. apartments in a lodging house.
3. A hall, as where a king gives audience, or a deliberative body or assembly meets.
4. A legislative or judicial body; an assembly; a society or association.
5. A compartment or cell; an inclosed space or cavity.
6. A room or rooms where a lawyer transacts business; a room or rooms where a judge transacts such official business as may be done out of court.
7. A chamber pot.
8.
9. that part of the bore of a piece of ordnance which holds the charge, esp. when of different diameter from the rest of the bore; -- formerly, in guns, made smaller than the bore, but now larger, esp. in breech-loading guns.
10. A cavity in a mine, usually of a cubical form, to contain the powder.
11. A short piece of ordnance or cannon, which stood on its breech, without any carriage, formerly used chiefly for rejoicings and theatrical cannonades.
12. to reside in or occupy a chamber or chambers.
13. to be lascivious.
14. to shut up, as in a chamber.
15. to furnish with a chamber.

1. to reside in or occupy a chamber.
2. to fit snugly, as layers of buckshot in the barrel of a gun or in a cartridge. see extract under II., 3.
3. to shut up in or as in a chamber.
4. to furnish with a chamber, as the barrel of a breech-loading firearm.
5. to fit into tho barrel of a gun or into a cartridge, as buckshot.
6. A room of a dwelling-house; an apartment; specifically, a sleeping-apartment; a bedroom.
7. plural
8. A room or rooms where professional men, as lawyers, conduct their business; especially, any place out of court (usually a room set apart for this purpose) where a judge may dispose of questions of procedure of a class not sufficiently important to be heard and argued in court, or too urgent to await a term of court: distinctively called judges' chambers.
9. furnished rooms hired for residence in the house of another; lodgings: as, “a bachelor life in chambers,”
10. A place where an assembly meets: as, a legislative chamber, ecclesiastical chamber, privy chamber, etc.— 4. the assembly itself; sometimes, specifically, one of the branches of a legislative assembly: as, the new york chamber of commerce; a meeting of the legislative chamber.
11. A compartment or inclosed space; a hollow or cavity: as, the chambers of the eye (see below); the chamber of a furnace.
12. specifically— in hydraulic engin,:
13. the space between the gates of a canal-lock.
14. the part of a pump in which the bucket of a plunger works.
15. Milit.:
16. that part of a barrel, at the breech of a firearm or piece of ordnance, which is enlarged to receive the charge or cartridge; also, a receptacle for a cartridge in the cylinder of a revolver or of a breech-loading gun.
17. an underground cavity or mine for holding powder and bombs, where they may be safe and dry. distinctively called powder-chamber and bomb-chamber.
18. the indentation in an axle-box, designed to hold the lubricant.
19. that part of a mold containing the exterior part of a casting and covering the core in hollow castings.
20. in anatomy: A cavity representing the urogenital sinus of the embryo undifferentiated into a prostatic and bulbous urethra.
21. see chambers of the eye, below.
22. in conchology:
23. the interval between the septa of the camerated shell of a cephalopod, such as species of nautilus or ammonites, as well as the portion of the shell in which the animal rests.
24. A cavity separated from another or the main part of the interior of the shell by a septum.
25. in coal-mining, same as breast or room. see breast.
26. A short piece of ordnance without a carriage and standing on its breech, formerly used chiefly for rejoicings and theatrical purposes.
27. A bedroom utensil, used for containing urine; a chamber-pot.
28. A court in the netherlands where cases relating to insurance are tried.
29. the place where the moneys due the government (municipal or other) are received and kept; the treasury; the chamberlain's office. see chamberlain, 2.
30. of the british and american divines who in 1870 and following year's produced the present revised version of the bible; and
31. of the upper house of convocation of the province of Canterbury: so named from its tapestried walls which show many scenes from jerusalem. here henry iv. died.

1. a room used primarily for sleeping
2. place in a chamber
3. an enclosed volume in the body
4. a natural or artificial enclosed space
5. a room where a judge transacts business
6. a deliberative or legislative or administrative or judicial assembly