Source : Webster's Revised Unabridged Dictionary (1913)

Telugu \Tel`u*gu"\, n.
   1. A Darvidian language spoken in the northern parts of the
      Madras presidency. In extent of use it is the next
      language after Hindustani (in its various forms) and
      Bengali. [Spelt also {Teloogoo}.]

   2. One of the people speaking the Telugu language.

Telugu \Tel`u*gu"\, a.
   Of or pertaining to the Telugu language, or the Telugus.

Source : WordNet®

Telugu
     n 1: a member of the people in southeastern India (Andhra
          Pradesh) who speak the Telugu language
     2: a Dravidian language spoken by the Telugu people in
        southeastern India