Legal Dictionary


Definition of chamber


    From French chambre from Latin camera from Ancient Greek καμάρα (kamara), "vaulted chamber").



chamber (plural chambers)

  1. A room, especially one used primarily for sleeping; bedroom, sleeping room.

    * 1845, Edgar Allen Poe, The Raven,
    Once upon a midnight dreary, while I pondered, weak and weary,
    Over many a quaint and curious volume of forgotten lore,
    While I nodded, nearly napping, suddenly there came a tapping,
    As of some one gently rapping, rapping at my chamber door.

  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.

    Dianne loaded a cartridge into the chamber of the rifle, then prepared to take aim at the target.

  4. One of the legislative bodies in a government where multiple such bodies exist, or a single such body in comparison to others.

    The resolution, which speedily passed the Senate, was unable to gain a majority in the lower chamber.

Related terms

  • bubble chamber
  • chamberlain
  • chambermaid
  • chamber music
  • chamber of commerce
  • chamber pot
  • cloud chamber
  • in chambers
  • Wilson chamber


to chamber (third-person singular simple present chambers, present participle chambering, simple past and past participle chambered)

  1. To enclose in a room.

    She had chambered herself in her room, and wouldn't come out.

  2. To place in a chamber, as a round of ammunition.

    The hunter fired at the geese and missed, then shrugged his shoulders and chambered another cartridge.

  3. To create or modify a gun to be a specific caliber.

    The rifle was originally chambered for 9MM, but had since been modified for a larger, wildcat caliber.


  1. Wiktionary. Published under the Creative Commons Attribution/Share-Alike License.


1.     quorum
2.     scienter
3.     lex situs
4.     lex causae
5.     AORO
6.     adjudication order
7.     lex domicilii
8.     Miranda warning
9.     lex patriae
10.     lex loci celebrationis