/ Thesaurus / G Synonyms of ganoidei Find synonyms for: Noun1. Ganoidei, order Ganoidei, animal orderusage: a group of mostly extinct primitive bony fishes characterized by armor-like bony scalesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language