Breadcrumb Home > Thesaurus > P Synonyms of pterosaur Find synonyms for: Noun1. pterosaur, flying reptile, archosaur, archosaurian, archosaurian reptileusage: an extinct reptile of the Jurassic and Cretaceous having a bird-like beak and membranous wings supported by the very long fourth digit of each forelimbWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of pterosaur (Dictionary) ✖ Related Content Daily Word Quiz: temporize Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language