Dictionary
pro'pylene gly'col
Chem.
a colorless, viscous, hygroscopic liquid, C
3H
8O, used chiefly as a lubricant, as an antifreeze, as a heat transfer fluid, and as a solvent for fats, oils, waxes, and resins.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.