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[pri-ven-ter] /prɪˈvɛn tər/
a person or thing that prevents.
  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 of preventer
First recorded in 1580-90; prevent + -er1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for preventer
Historical Examples
  • A ship hove-to with preventer tackles on the rudder-head is unmanageable.

  • preventer—A rope used to prevent the straining or breaking of a spar or sail.

    On Yacht Sailing Thomas Fleming Day
  • preventer stays: Additional ropes set up taut to prevent spars carrying away when a vessel is under a press of canvas.

  • The only safeguard lies in rigging a preventer stay that will set up with a tackle, the fall leading inboard.

    On Yachts and Yacht Handling Thomas Fleming Day
  • It was formerly a custom to fit two bobstays, a regular one and a smaller one, called a preventer.

    On Yachts and Yacht Handling Thomas Fleming Day
  • The yards had been previously slung in chains, stoppers prepared for the rigging, and preventer braces rove.

  • Through the preventer stern-post, reeve guys, and at the fore part of them fix tackles, and then put the machine overboard.

    The Seaman's Friend Richard Henry Dana
  • The veriest tyro in physiology should know that the gastric juice is itself a preventer of putrefaction.

    Tobacco and Alcohol John Fiske
  • Breck tells us that his dope was planned to be a counter-irritant after being bitten as well as a preventer of bites.

    On the Trail Lina Beard and Adelia Belle Beard
British Dictionary definitions for preventer


a person or thing that prevents
(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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