/ Thesaurus / F Synonyms of family argentinidae Find synonyms for: Noun1. Argentinidae, family Argentinidae, fish familyusage: small marine soft-finned fishes with long silvery bodies; related to salmons and troutsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language