croton UK /ˈkɹəʊtən/US /ˈkɹoʊt(ə)n/ noun2 •Any of various plants, of the genus Croton, that yield croton oil. •A tropical evergreen shrub (Codiaeum variegatum), having glossy foliage, cultivated as a houseplant.The croton bushes, by day hideous things like jaundiced laurels, were changed by the moon into jagged black and white designs like fantastic wood-cuts. — 1934 formscrotons