(underwater diving) A cave chamber with an airspace above the water at less than atmospheric pressure.

An apparatus for measuring the properties of epithelial membrane.

An attachment to a furnace in which the fumes of any metal are condensed.

A room, in a royal palace, in which a monarch receives visitors

The House of Lords.

(uncountable) A genre of opera written to be performed with a chamber ensemble. / (countable) An individual opera in this genre.

(music) A subgenre of rock music which places increased emphasis on melody, often incorporating vocal harmonies and bowed string instruments.

A chamber, typically underground, in which young (animals or insects) are born and raised until old enough to venture outside

(now archaic, regional) Urine, especially as used for domestic or agricultural purposes.

An exhibition which displays horrific items, such as instruments of torture, frightful crimes being committed, etc. / Any place in which horrific things take place or have taken place.