The Collaborative International Dictionary of English v.0.48:

Aard-wolf \Aard"-wolf`\ ([aum]rd"w[oo^]lf), n. [D, earth-wolf]
   (Zool.)
   A carnivorous, striped, quadruped mammal (Proteles
   cristata, formerly Proteles Lalandii), of South Africa,
   resembling the fox and hyena. It feeds chiefly on insects.
   See Proteles.
   [1913 Webster WordNet 1.5] Aaronic

WordNet (r) 3.0 (2006):

aardwolf
    n 1: striped hyena of southeast Africa that feeds chiefly on
         insects [syn: aardwolf, Proteles cristata]