/ Thesaurus / P Synonyms of phocoena sinus Find synonyms for: Noun1. vaquita, Phocoena sinus, porpoiseusage: a short porpoise that lives in the Gulf of California; an endangered speciesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language