/ Dictionary / Index P polydrug: Meaning and Definition of Find definitions for: pol•y•drug Pronunciation: (pol"ē-drug'), [key] — adj. being or pertaining to several drugs used simultaneously, esp. narcotics or addictive drugs: a center for dealing with polydrug abuse. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Polydorus polyelectrolyte Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language