/ Thesaurus / C Synonyms of ceras Find synonyms for: Noun1. ceras, gill, branchiausage: one of the often brightly colored and branching hornlike structures on the back of the nudibranch (and other related mollusks) that serve as gillsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: quandary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language