Source : Webster's Revised Unabridged Dictionary (1913)

Llama \Lla"ma\, n. [Peruv.] (Zo["o]l.)
   A South American ruminant ({Auchenia llama}), allied to the
   camels, but much smaller and without a hump. It is supposed
   to be a domesticated variety of the guanaco. It was formerly
   much used as a beast of burden in the Andes.

Source : WordNet®

llama
     n : wild or domesticated South American cud-chewing animal
         related to camels but smaller and lacking a hump