/ Thesaurus / D Synonyms of diophantus Find synonyms for: Noun1. Diophantususage: Greek mathematician who was the first to try to develop an algebraic notation (3rd century)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language