/ Dictionary / Index C coreopsis: Meaning and Definition of Find definitions for: co•re•op•sis Pronunciation: (kôr"ē-op'sis, kōr"-), [key] — n. any composite plant of the genus Coreopsis, including familiar garden species having yellow, brownish, or yellow-and-red ray flowers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: coreopsis (Thesaurus) coremium corepressor Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language