/ Dictionary / Index P poly: Meaning and Definition of Find definitions for: pol•y Pronunciation: (pol'ē), [key] — n., pl. adj. pol•ies, —n. polyester (def. 2): a blend of poly and cotton. a fabric or garment made of polyester. —adj. made of or containing polyester: a poly swimsuit. poly- Pronunciation: [key] a combining form with the meanings “much, many” and, in chemistry, “polymeric,” used in the formation of compound words: polyandrous; polyculture; polyethylene. poly. Pronunciation: [key] polytechnic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. poltroon polyacid Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language