Source : Webster's Revised Unabridged Dictionary (1913)

Inca \In"ca\, n.
   (a) An emperor or monarch of Peru before, or at the time of,
       the Spanish conquest; any member of this royal dynasty,
       reputed to have been descendants of the sun.
   (b) pl. The people governed by the Incas, now represented by
       the Quichua tribe.

   {Inca dove} (Zo["o]l.), a small dove ({Scardafella inca}),
      native of Arizona, Lower California, and Mexico.

Source : WordNet®

Inca
     n 1: a ruler of the Incas (or a member of his family)
     2: a member of the small group of Quechuan people living in the
        Cuzco valley in Peru who established hegemony over their
        neighbors to create the great Inca empire that lasted from
        about 1100 until the Spanish conquest in the early 1530s
        [syn: {Inka}, {Incan}]