1. escape_valve - noun
ยท 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
Synonym(s): safety_valve, relief_valve, escape_cock, escape
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ยท 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
Synonym(s): safety_valve, relief_valve, escape_cock, escape