any of several white gulls, as Larus marinus (great black-backed gull), having a black back and wings.
Origin of black-backed gull
First recorded in 1770–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
either of two common black-and-white European coastal gulls, Larus fuscus (lesser black-backed gull) and L. marinus (great black-backed gull)
Also called: karoro a southern gull, larus dominicanus, with black feathers on its back
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012