Definition of croton
1
: any of a genus (Croton) of herbs, shrubs, and trees of the spurge family: such as
a
: one (C. eluteria) of the Bahamas yielding cascarilla bark
b
: an Asian plant (C. tiglium) yielding croton oil
2
: any of a genus (Codiaeum) of shrubs and trees related to the crotons
