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safety valve

noun
1.
a device that, when actuated by a gas or vapor pressure above a predetermined level, opens and allows the gas or vapor to escape until its pressure is reduced to a pressure equal to or below that of the predetermined level.
Compare relief valve.
2.
a harmless outlet for emotion, tension, etc.
Origin
1805-1815
1805-15
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for safety valve
  • Second, if something goes wrong there is safety valve.
  • He is a punishing inside runner who also provides great value as a safety valve receiver.
  • The government is suspected of condoning a certain amount of ethnic and religious unrest as a safety valve.
  • The initiative process, originally meant as a safety valve, has in reality become a rival to the legislature.
  • Some fear that emigration is turning from a safety valve to a brain drain.
  • He is bored, but because he has no safety valve of impatience, he explodes.
  • The state's ultimate safety valve was an expensive program of distilling all the excess wine into industrial alcohol.
  • Of particular importance is the location, pressure rating, and flow capacity of the safety valve.
  • The safety valve shall be certified by the national board of boiler and pressure vessel inspectors.
  • With two criminal history points, he does not qualify for the safety valve.
British Dictionary definitions for safety valve

safety valve

noun
1.
a valve in a pressure vessel that allows fluid to escape when a predetermined level of pressure has been reached
2.
a harmless outlet for emotion, energy, tension, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Value for safety

12
11
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