/ Dictionary / Index P polygynist: Meaning and Definition of Find definitions for: po•lyg•y•nist Pronunciation: (pu-lij'u-nist), [key] — n. a person who practices or favors polygyny. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: polygynist (Thesaurus) polygraph polygynous Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language