/ Thesaurus / R Synonyms of rasp fern Find synonyms for: Noun1. doodia, rasp fern, fernusage: any fern of the genus Doodia having pinnate fronds with sharply dentate pinnaeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: abscond Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language