Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun relief_valve

1 sense of relief valve

Sense 1
safety valve, relief valve, escape valve, escape cock, escape -- (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)
       => valve -- (control consisting of a mechanical device for controlling the flow of a fluid)
       => regulator -- (any of various controls or devices for regulating or controlling fluid flow, pressure, temperature, etc.)