/ Thesaurus / L Synonyms of larus marinus Find synonyms for: Noun1. black-backed gull, great black-backed gull, cob, Larus marinus, gull, seagull, sea gullusage: white gull having a black back and wingsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: aversion Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language