plural chambers
1
: a small space inside something (such as a machine or your body)
He put three bullets into the chamber of the gun.
the chambers of the heart
2
: a usually large room where members of a government group (such as a legislature) have meetings
We waited for the senator outside the Senate chamber.
3
: a group of people who form part of a government
The U.S. legislature is separated into two chambers: the Senate and the House of Representatives.
the upper and lower chambers of the British Parliament [=the House of Lords and the House of Commons]
4
: a room where a judge goes to do official business or to discuss cases with lawyers outside of the courtroom
—usually plural
the judge's chambers
5
formal + old-fashioned
: a person's bedroom or other private room
the queen's personal chambers
a bridal chamber [=a bedroom used by two people who have just been married]
the temple's inner chambers
6
: a room used for a special purpose
the burial chambers inside an Egyptian pyramid
a torture chamber
Cite this Entry
“Chamber.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/chamber. Accessed 17 Apr. 2026.
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