/ Dictionary / Index A autumn crocus: Meaning and Definition of Find definitions for: au'tumn cro'cus Pronunciation: [key] any of several bulbous plants of the genus Colchicum, of the lily family, esp. C. autumnale, bearing showy, crocuslike white, pink, or purple flowers in autumn. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. autumnal equinox autunite Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language