Meaning of “chamber” - Learner’s Dictionary

chamber

noun [ C ] uk us /ˈtʃeɪmbər/
ROOM

a room used for an official or special purpose:

a debating chamber
a burial chamber
PARLIAMENT

one of the groups that a parliament is divided into:

the upper/lower chamber
MACHINE/BODY

a closed space in a machine or in your body:

the left chamber of the heart
→ See also gas chamber

(Definition of “chamber” from the Cambridge Learner’s Dictionary © Cambridge University Press)