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hydrophobic

American  
[hahy-druh-foh-bik] / ˌhaɪ drəˈfoʊ bɪk /

adjective

  1. of or relating to hydrophobia.

  2. Chemistry. having little or no affinity for water.


hydrophobic British  
/ ˌhaɪdrəˈfəʊbɪk /

adjective

  1. of or relating to hydrophobia

  2. chem tending not to dissolve in, mix with, or be wetted by water Compare hydrophilic

    a hydrophobic colloid

"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

Other Word Forms


Etymology

Origin of hydrophobic

First recorded in 1640–50; hydrophobe + -ic


Vocabulary lists containing hydrophobic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Wildfires can make soils become hydrophobic, with vaporized organic matter forming a waxy crust that repels water.

From Los Angeles Times ● Oct. 22, 2026

The same technology could also have potential uses in post-traumatic OA, intervertebral disc degeneration, rotator cuff degeneration, and the localized delivery of other hydrophobic drug candidates.

From Science Daily ● Aug. 31, 2026

Such fabrics are hydrophobic, or water hating, similar to grease and oils.

From The Wall Street Journal ● Jun. 22, 2026

In their study published in Cell Reports Physical Science, the researchers also tried to understand the specific interactions that occur between hydrophobic components and proteins and their impact on protein aggregation.

From Science Daily ● May 30, 2024

You might as well reason with a rattlesnake, striking at you—might as well seek to temporize and argue with a dog drooling hydrophobic foam, as to tell the human heart what it ought to do.

From The Jucklins A Novel by Opie Percival Read

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