/ Dictionary / Index R retroserrate: Meaning and Definition of Find definitions for: ret•ro•ser•rate Pronunciation: (re"trō-ser'it, -āt), [key] — adj. Bot., Zool. having retrorse teeth or barbs. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. retrorse retroserrulate Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language