/ Thesaurus / F Synonyms of family equidae Find synonyms for: Noun1. Equidae, family Equidae, mammal familyusage: horses; asses; zebras; extinct animalsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language