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preventer

[pri-ven-ter] /prɪˈvɛn tər/
noun
1.
a person or thing that prevents.
2.
Nautical.
  1. any of various lines set up to reinforce or relieve ordinary running or standing rigging.
  2. a line for preventing a sail from jibbing.
Origin
1580-1590
1580-90; prevent + -er1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for preventer
  • If the box can contain the bigger leak, a second box being built may be used to stop the smaller leak at the blowout preventer.
  • The well blew out, the blowout preventer failed, and the drilling rig caught fire and eventually sank.
  • Follow this treatment with application of a natural, corn gluten-based weed preventer.
  • Stretching does not live up to its reputation as an injury preventer, a study has found.
  • New plans involving work on a blowout preventer could move officials closer to halting the oil.
  • The blowout shouldn't have happened, and the blowout preventer failed to work.
  • When workers on the rig tried to activate the well's blowout preventer, it failed.
  • The backflow preventer must be installed on the side outlet of the pressure bleeding device.
British Dictionary definitions for preventer

preventer

/prɪˈvɛntə/
noun
1.
a person or thing that prevents
2.
(nautical) a rope or other piece of gear rigged to prevent a sail from gybing
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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