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hydrophobic

[hahy-druh-foh-bik] /ˌhaɪ drəˈfoʊ bɪk/
adjective
1.
of or pertaining to hydrophobia.
2.
Chemistry. having little or no affinity for water.
Compare oleophilic.
Origin
1640-1650
1640-50; hydrophobe + -ic
Related forms
hydrophobicity
[hahy-druh-foh-bis-i-tee] /ˌhaɪ drə foʊˈbɪs ɪ ti/ (Show IPA),
noun
nonhydrophobic, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for hydrophobic
  • Whether particulates in a mix are hydrophobic or hydrophilic, adding water can thicken the mix.
  • As a saturated fatty acid, chocolate is also hydrophobic.
  • The shell repels water with a breathable hydrophobic polymer, while the recycled pile lining wicks away moisture and sweat.
  • The article is a powerful and a cunning one, though weakened by hydrophobic symptoms, here and there.
  • Lipids will form in a structure to protect their hydrophobic tails from water, which may form a membrane.
  • Other hydrophobic structures have typically been made from organic materials.
  • But the paper is treated with a hydrophobic polymer, which directs the liquid along prescribed channels.
  • As you add more fluid, the droplets bulge out at the edge of the grooves because of the surrounding hydrophobic area.
  • At either end of the backbone is a hydrophobic sequence.
  • The more hydrophobic a substance is, the higher the contact angle and the more spherical the water bead.
British Dictionary definitions for hydrophobic

hydrophobic

/ˌhaɪdrəˈfəʊbɪk/
adjective
1.
of or relating to hydrophobia
2.
(chem) tending not to dissolve in, mix with, or be wetted by water: a hydrophobic colloid Compare hydrophilic
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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Word Origin and History for hydrophobic
adj.

1807, from hydrophobia + -ic.

Online Etymology Dictionary, © 2010 Douglas Harper
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hydrophobic in Medicine

hydrophobic hy·dro·pho·bic (hī'drə-fō'bĭk, -fŏb'ĭk)
adj.

  1. Repelling, tending not to combine with, or unable to dissolve in water.

  2. Of or exhibiting hydrophobia.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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