/ Thesaurus / P Synonyms of periophthalmus Find synonyms for: Noun1. Periophthalmus, genus Periophthalmus, fish genususage: a genus of GobiidaeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language