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

plural of living chamber

(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.

plural of chamber of horrors

plural of wire chamber

A kind of proportional counter that detects charged particles and photons and can give positional information on their trajectory, by tracking the trails of gaseous ionization.