The Collaborative International Dictionary of English v.0.48:

elkhound \elk"hound\ ([e^]lk"hound), n.
   a breed of compact medium-sized dog with a heavy gray coat
   developed in Norway for hunting elk.
   [WordNet 1.5]

WordNet (r) 3.0 (2006):

elkhound
    n 1: breed of compact medium-sized dog with a heavy grey coat
         developed in Norway for hunting elk [syn: Norwegian
         elkhound, elkhound]