/ Thesaurus / S Synonyms of sea hare Find synonyms for: Noun1. sea hare, Aplysia punctata, gastropod, univalveusage: naked marine gastropod having a soft body with reduced internal shell and two pairs of ear-like tentaclesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language