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Science & TechnologyGreekEnglish

Hydrophilic

/ˌhaɪdrə(ʊ)ˈfɪlɪk/adjective

Readily attracting, dissolving in, or being wetted by water.

The Greek roots

ὕδωρ
hýdōr
water
+
φίλος
phílos
loving, dear

Literally: water-loving

The story of the word

Chemists needed a pair of opposites for the two ends of a soap molecule, and Greek supplied them: the hydrophilic head dips into water, the hydrophobic tail turns away. That single split explains detergents, cell membranes and why oil and vinegar refuse to stay mixed. The Greeks used φίλος for a friend, so the coinage quietly casts water as company you either seek or avoid.

How it travelled
Ancient Greek → scientific coinage → English
First recorded
20th century

Same family

hydrantdehydratephilosophyphilanthropyhydrophobia

In a sentence

The coating is hydrophilic, so the droplet spreads instead of beading up.

One end of the molecule is hydrophilic and the other is not, which is the whole trick of soap.

Built on the same root

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