/ Dictionary / Index P pronator: Meaning and Definition of Find definitions for: pro•na•tor Pronunciation: (prō'nā-tur, prō-nā'-), [key] — n. any of several muscles that permit pronation of the hand, forelimb, or foot. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pronator (Thesaurus) pronation prone Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language