• synonyms


  1. of or relating to hydrophobia.
  2. Chemistry. having little or no affinity for water.
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Compare oleophilic.

Origin of hydrophobic

First recorded in 1640–50; hydrophobe + -ic
Related formshy·dro·pho·bic·i·ty [hahy-druh-foh-bis-i-tee] /ˌhaɪ drə foʊˈbɪs ɪ ti/, nounnon·hy·dro·pho·bic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for hydrophobic

Historical Examples of hydrophobic

  • I never was so disappointed in my life because it wasn't a Hydrophobic Skunk at all.

    The Boy Scouts Book of Campfire Stories


  • Associated words: rabid, rabietic, hydrophobic, antihydrophobic.

    Putnam's Word Book

    Louis A. Flemming

  • Mr. Kraus was excused in a state of hydrophobic rage and Teed withdrew in all meekness.

    In a Little Town

    Rupert Hughes

  • It is not impossible, since Jenner found the vaccine virus, Pasteur the hydrophobic lymph and now Koch the tubercle lymph.

  • He detached himself from the tilting control panel and sailed wildly about like a hydrophobic goldfish in a bowl of water.

    Master of the Moondog

    Stanley Mullen

British Dictionary definitions for hydrophobic


  1. of or relating to hydrophobia
  2. chem tending not to dissolve in, mix with, or be wetted by watera hydrophobic colloid Compare hydrophilic
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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 hydrophobic


1807, from hydrophobia + -ic.

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Online Etymology Dictionary, © 2010 Douglas Harper

hydrophobic in Medicine


(hī′drə-fōbĭk, -fŏbĭk)
  1. Repelling, tending not to combine with, or unable to dissolve in water.
  2. Of or exhibiting hydrophobia.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.