escape valve is a noun meaning "a valve in a container in which pressure can build up (as a steam boiler); it opens automatically when the pressure reaches a dangerous level". It carries one recorded sense.
a valve in a container in which pressure can build up (as a steam boiler); it opens automatically when the pressure reaches a dangerous level
Definitions, synonyms and semantic relations for escape valve come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.