The Collaborative International Dictionary of English v.0.48:

aardvark \aard"vark`\ ([aum]rd"v[aum]rk`), n. [D., earth-pig.]
   (Zool.)
   An edentate mammal, of the genus Orycteropus (Orycteropus
   afer), somewhat resembling a pig, common in some parts of
   Southern Africa. It is a nocturnal ungulate, burrows in the
   ground with its powerful claws, and feeds entirely on ants
   and termites, which it catches with its long, extensile,
   slimy tongue. It is the sole extant representative of the
   order Tubulidentata. [Spelled also Aard-vark.]

   Syn: Syn. --ant bear, anteater, Orycteropus afer, oryctere,
        orycterope
        [1913 Webster WordNet 1.5]