/ Thesaurus / F Synonyms of family papilionacea Find synonyms for: Noun1. Papilionaceae, family Papilionacea, rosid dicot familyusage: leguminous plants whose flowers have butterfly-shaped corollas; commonly included in the family LeguminosaeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: dormant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language