Source : Webster's Revised Unabridged Dictionary (1913)

Varanus \Va*ra"nus\, n. [NL., fr. Ar. waran, waral; cf. F.
   varan, from the Arabic.] (Zo["o]l.)
   A genus of very large lizards native of Asia and Africa. It
   includes the monitors. See {Monitor}, 3.

Source : WordNet®

Varanus
     n : type and sole extant genus of the Varanidae [syn: {genus
         Varanus}]