/ Thesaurus / M Synonyms of marine iguana Find synonyms for: Noun1. marine iguana, Amblyrhynchus cristatus, iguanid, iguanid lizardusage: shore-dwelling seaweed-eating lizard of the Galapagos IslandsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language