/ Thesaurus / A Synonyms of archosaurian reptile Find synonyms for: Noun1. archosaur, archosaurian, archosaurian reptile, diapsid, diapsid reptileusage: extinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodontsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language