The Collaborative International Dictionary of English v.0.48:

Dachshund \Dachs"hund`\ (d[aum]ks"h[udd]nt`), n. [G., from dachs
   badger + hund dog.] (Zool.)
   One of a breed of small dogs with short crooked legs, and
   long body; -- called also badger dog. There are two kinds,
   the rough-haired and the smooth-haired.
   [1913 Webster]

WordNet (r) 3.0 (2006):

dachshund
    n 1: small long-bodied short-legged German breed of dog having a
         short sleek coat and long drooping ears; suited for
         following game into burrows [syn: dachshund, dachsie,
         badger dog]