/ Thesaurus / H Synonyms of herrerasaur Find synonyms for: Noun1. herrerasaur, herrerasaurus, theropod, theropod dinosaur, bird-footed dinosaurusage: a kind of theropod dinosaur found in ArgentinaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language