"semi-solid substance," 1899, as a chemical term, short for gelatin and perhaps influenced by jell. The invention of this word is credited to Scottish chemist Thomas Graham. Hair-styling sense is from 1958.
gel (v.)
1902, "to become a gel," from gel (n.). Figurative sense "come together and agree well" is from 1958. Related: Gelled; gelling.
The solid, when heated, gelled
gehenna
Geiger counter
geisha
geist
*gel-
gel
gelatin
gelatine
gelatinous
gelato
geld
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