/ Thesaurus / D Synonyms of doliolum Find synonyms for: Noun1. doliolum, tunicate, urochordate, urochordusage: free-swimming oceanic tunicate with a barrel-shaped transparent bodyWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language