/ Thesaurus / F Synonyms of family bennettitaceae Find synonyms for: Noun1. Bennettitaceae, family Bennettitaceae, gymnosperm familyusage: a family of fossil gymnospermous plants of the CarboniferousWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language