/ Thesaurus / P Synonyms of pteridospermae Find synonyms for: Noun1. Pteridospermae, group Pteridospermae, Pteridospermaphyta, group Pteridospermaphyta, taxonomic group, taxonomic category, taxonusage: used in some classification systems: a group of extinct fossil gymnosperms coextensive with the order CycadofilicalesWordNet 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