ˌkōrēˈäpsə̇s, ˌkȯr- noun
Etymology: New Latin, from core- (from Greek koris bedbug) + -opsis; from the shape of the achene — more at coreidae
1. capitalized : a genus of herbs (family Compositae) many of which are used in cultivation and which have showy flower heads with involucral bracts in two distinct series of eight each, the outer being commonly connate at the base
2. plural coreopsis : a plant of the genus Coreopsis — called also tickseed ; compare calliopsis