hy·​dro·​pho·​bic | \ ˌhī-drə-ˈfō-bik How to pronounce hydrophobic (audio) \

Definition of hydrophobic

1 : of, relating to, or suffering from hydrophobia
2 : lacking affinity for water

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Other Words from hydrophobic

hydrophobicity \ ˌhī-​drə-​fō-​ˈbi-​sə-​tē How to pronounce hydrophobic (audio) \ noun

Examples of hydrophobic in a Sentence

Recent Examples on the Web In short, three-layer masks are the best, with hydrophobic material on the outside and hydrophilic materials on the inside. Eric Bangeman, Ars Technica, "2020’s 20 most-read stories on Ars Technica," 24 Dec. 2020 But Kelty kicks it up with hydrophobic Dri-Down, which isn’t nearly as finicky about moisture, and some solid design upgrades such as an interior stash pocket and a soft nylon taffeta lining. Ben Romans, Outdoor Life, "The 2020 Camping Gear Gift Guide," 26 Nov. 2020 The outermost layer made of hydrophobic (water-repelling) material (polypropylene, polyester, or their blends). Corey Gaskin, Ars Technica, "Mask up! How to choose and maintain the best masks for use against COVID-19," 20 Nov. 2020 The lenses bring in a great amount of light to work well in dim conditions and are even hydrophobic to repel moisture and keep images clear. Will Palmer, Popular Mechanics, "8 Great Binoculars for Getting a Closer Look," 8 Oct. 2020 Some anglers prefer a hydrophobic powder to keep their flies afloat. Matthew Every, Field & Stream, "The Best Flyfishing Gear for Beginners," 16 Sep. 2020 Because the hydrocarbon bonds are hydrophobic (or water-repelling), the surface will become slick and nonstick. Paige Szmodis, Popular Mechanics, "The 10 Best Cast-Iron Skillets to Last a Lifetime," 10 Sep. 2020 Designed for everyday use, this strap is resistant to water, sweat and spills, thanks to hydrophobic leather, and the lugs and buckle are made from stainless steel. Ellen Mcalpine, CNN Underscored, "Nomad’s durable, sleek tech accessories are now 30% off," 13 Aug. 2020 This causes the outside layer of the mask to be hydrophobic, which prevents it from absorbing water if it's worn in the rain or while exercising. Zoe Malin, NBC News, "Crayola's new face masks for kids: What to know," 31 July 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hydrophobic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of hydrophobic

1807, in the meaning defined at sense 1

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Time Traveler for hydrophobic

Time Traveler

The first known use of hydrophobic was in 1807

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Statistics for hydrophobic

Last Updated

6 Jan 2021

Cite this Entry

“Hydrophobic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrophobic. Accessed 28 Feb. 2021.

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More Definitions for hydrophobic


hy·​dro·​pho·​bic | \ -ˈfō-bik How to pronounce hydrophobic (audio) \

Medical Definition of hydrophobic

1 : of, relating to, or suffering from hydrophobia
2 : resistant to or avoiding wetting a hydrophobic lens
3 : of, relating to, or having a lack of affinity for water hydrophobic colloids are relatively unstable — compare lyophobic, oleophobic

Other Words from hydrophobic

hydrophobically \ -​bi-​k(ə-​)lē How to pronounce hydrophobic (audio) \ adverb
hydrophobicity \ -​ˌfō-​ˈbis-​ət-​ē How to pronounce hydrophobic (audio) \ noun, plural hydrophobicities

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