Coreopsis \Co`re*op"sis\ (k?`r?-?p"s?s), n. [NL., fr. Gr. ???? bug + ??? appearance.]

(Bot.) A genus of herbaceous composite plants, having the achenes two-horned and remotely resembling some insect; tickseed. C. tinctoria, of the Western plains, the commonest plant of the genus, has been used in dyeing.

Source: Webster's Revised Unabridged Dictionary (1913)