/ Thesaurus / M Synonyms of melocactus Find synonyms for: Noun1. Melocactus, genus Melocactus, caryophylloid dicot genususage: genus of strongly ribbed globose or spheroid cacti of tropical South and Central America and the CaribbeanWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: penurious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language