/ Dictionary / Index P pollenosis: Meaning and Definition of Find definitions for: pol•len•o•sis Pronunciation: (pol"u-nō'sis), [key] — n. Pathol. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pollen grain pollen sac Related Content Daily Word Quiz: dissonant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language