/ Dictionary / Index P polynya: Meaning and Definition of Find definitions for: po•lyn•ya Pronunciation: (pu-lin'yu), [key] — n. an area of unfrozen sea water surrounded by ice. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: polynya (Thesaurus) polynucleotide polyoestrous Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language