Safety-valve meaning

A valve in a pressure container, as in a steam boiler, that automatically opens when pressure reaches a dangerous level.
noun
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An outlet for the release of repressed energy or emotion.
noun
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An automatic valve for a steam boiler, pressure cooker, etc., which opens if the pressure becomes excessive.
noun
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Any outlet for the release of strong emotion, energy, etc.
noun
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A relief valve set to open at a pressure below that at which a container (such as a boiler) would burst.
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Attributive form of safety valve, noun.
adjective
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