/ Thesaurus / P Synonyms of pteropsida Find synonyms for: Noun1. Pteropsida, subdivision Pteropsida, divisionusage: used in former classifications to include all ferns and flowering plants and divided into the three classes Filicinae and Gymnospermae and AngiospermaeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: respite Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language