• synonyms


[klawr-uh-neyt, klohr-]
verb (used with object), chlo·ri·nat·ed, chlo·ri·nat·ing.
  1. Chemistry.
    1. to combine or treat with chlorine.
    2. to introduce chlorine atoms into an organic compound by an addition or substitution reaction.
  2. to disinfect (water) by means of chlorine.
  3. Metallurgy. to treat (a gold ore) with chlorine gas in order that the gold may be removed as a soluble chloride.
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Origin of chlorinate

First recorded in 1855–60; chlorine + -ate1
Related formschlo·ri·na·tion, nounchlo·ri·na·tor, nounhy·per·chlo·ri·na·tion, nounpost·chlo·ri·na·tion, adjectiveun·chlo·ri·nat·ed, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for chlorinated

Historical Examples

  • A chlorinated mist, acrid to the eye, and burning to the nose, crawled about the room.

    Erik Dorn

    Ben Hecht

  • Water was taken from the river, and chlorinated in tanks on board.

    In Mesopotamia

    Martin Swayne

  • Bleaching powder, Chlorinated lime, Hypochlorite of calcium.

  • Pills of chlorinated lime; Pilul calcis hypochloritis, L. Prep.

  • “Sure, I know,” Brad acknowledged, easing his body snake-fashion down the pool wall into the chlorinated water.

British Dictionary definitions for chlorinated


verb (tr)
  1. to combine or treat (a substance) with chlorine
  2. to disinfect (water) with chlorine
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Derived Formschlorination, nounchlorinator, noun
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 chlorinated



1836 (implied in chlorinated), from chlorine (n.) + -ate (2). Related: Chlorinating.

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Online Etymology Dictionary, © 2010 Douglas Harper

chlorinated in Medicine


  1. To treat or combine with chlorine or a chlorine compound.
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Related formschlo′ri•nation n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

chlorinated in Science


  1. To add chlorine or one of its compounds to a substance. Water and sewage are chlorinated to be disinfected, and paper pulp is chlorinated to be bleached.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.