(n) any of numerous plants of the genus Coreopsis having a profusion of showy usually yellow daisylike flowers over long periods; North and South America, Syn. tick-weed, tickweed, tickseed
(n) North American annual widely cultivated for its yellow flowers with purple-red to brownish centers; in some classifications placed in a subgenus Calliopsis, Syn. Coreopsis tinctoria
‖prop. n. [ NL., fr. Gr. ko`ris bug + 'o`psis appearance. ] (Bot.) A genus of herbaceous composite plants, having the achenes two-horned and remotely resembling some insect; tickseed. Coreopsis tinctoria, of the Western plains, the commonest plant of the genus, has been used in dyeing. [ 1913 Webster ]