Labrador retriever

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A dog of a breed originating in Newfoundland, having a short yellow, black, or brown coat and often used to retrieve felled game. The breed was developed in England, where the name was changed from lesser Newfoundland to Labrador.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A relatively large breed of dog, popular as guide dog and in other service.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun breed originally from Labrador having a short black or golden-brown coat