'Glycol' definitions:

Definition of 'glycol'

From: WordNet
noun
A sweet but poisonous syrupy liquid used as an antifreeze and solvent [syn: ethylene glycol, glycol, ethanediol]
noun
Any of a class of alcohols having 2 hydroxyl groups in each molecule [syn: diol, glycol, dihydric alcohol]

Definition of 'Glycol'

From: GCIDE
  • Glycol \Gly"col\, n. [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. [1913 Webster]