chamber

[ C ] (scientific vocabulary often used in anatomy, biology, engineering) a closed space in a machine, plant, or body
（機器、植物或動物的）腔，膛，室

The human heart has four chambers.
人的心臟有四個心室。

[ C ] formal: a room used for a special or official purpose, or a group of people who form (part of) a parliament
（用於特定用途或官方用途的）房間，室，廳；議院

Meetings of the council are held in the council chamber.
委員會的會議在會議廳舉行。
a torture chamber
刑訊室

Source: https://dictionary.cambridge.org/dictionary/english-chinese-traditional/chamber