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antifreeze

[an-ti-freez, an-tee-]
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noun
  1. a liquid used in the radiator of an internal-combustion engine to lower the freezing point of the cooling medium.
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Origin of antifreeze

First recorded in 1910–15; anti- + freeze
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for antifreeze

antifreeze

noun
  1. a liquid, usually ethylene glycol (ethanediol), added to cooling water to lower its freezing point, esp for use in an internal-combustion engine
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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

Word Origin and History for antifreeze

also anti-freeze; 1913 (adj.), 1935 as a noun; from anti- + freeze.

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Online Etymology Dictionary, © 2010 Douglas Harper