1. genus of strongly ribbed globose or spheroid cacti of tropical South and Central America and the Caribbean; [syn: Melocactus, genus Melocactus]
WordNet (r) 3.0 (2006):
genus Melocactus
n 1: genus of strongly ribbed globose or spheroid cacti of
tropical South and Central America and the Caribbean [syn:
Melocactus, genus Melocactus]