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English definition of “safety valve”

safety valve

noun [C] uk   us  

safety valve noun [C] (MACHINE)

a small part on a machine, which allows steam or gas to escape if the pressure inside becomes too high

safety valve noun [C] (FEELINGS)

a way of getting rid of strong feelings without causing harm: For many people who suffer from stress at work, sport is a vital safety valve.
(Definition of safety valve from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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