GLYCOLS

Noun

glycols

plural of glycol

Source: Wiktionary

GLYCOL

Gly"col, n. Etym: [Glycerin + -ol. See Glycerin.] (Chem.) (a) A thick, colorless liquid, C2H4(OH)2, of a sweetish taste, produced artificially from certain ethylene compounds. It is a diacid alcohol, intermediate between ordinary ethyl alcohol and glycerin. (b) Any one of the large class of diacid alcohols, of which glycol proper is the type.

Source: Webster’s Unabridged Dictionary 1913 Edition