/ Thesaurus / B Synonyms of branchiostegidae Find synonyms for: Noun1. Branchiostegidae, family Branchiostegidae, fish familyusage: small family of marine fishes having covered gillsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: placate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language