Wiktionary
alt. A breed of dog used by hunters to find, flush out and retrieve birds and other game. n. A breed of dog used by hunters to find, flush out and retrieve birds and other game.
WordNet
n. a dog trained to work with sportsmen when they hunt with guns [syn: sporting dog]
Usage examples of "gun dog".
Charlie stopped pacing and stared eagerly at him, like a gun dog on point.
Sean took Matatu under the monkey-skin cloak with him as though he were a tired gun dog.
Sean grimed and quickened his step like an old gun dog with the scent of the bird in its nostrils again.
Iris went through the house like a gun dog looking for a game bird.
I guess his appearance helped, for he was nothing like the job at all, being a five-foot butterball with a beaming baby face behind a mighty moustache, innocent blue eyes, bald head, and frightful whiskers a foot long, chattering nineteen to the dozen (in several languages), gushing gallantly at the womenfolk, nosing up to the elbows of the men like a deferential gun dog, chuckling at every joke, first with all the gossip (so long as it didn't matter), a prime favourite at every Paris party and reception - and never missing a word or a look or a gesture, all of it grist to his astounding memory.