/ Dictionary / Index P polyethylene glycol: Meaning and Definition of Find definitions for: polyeth'ylene gly'col Pronunciation: [key] — Chem. Chem. any of a series of polymers of ethylene glycol, having a molecular weight of from about 200 to 6000, obtained by condensation of ethylene glycol or of ethylene oxide and water, used as an emulsifying agent and lubricant in ointments, creams, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. polyethylene polyfoam Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language