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. [1913 Webster] {Inca dove} (Zool.), a small dove ({Scardafella inca}), native of Arizona, Lower California, and Mexico. [1913 Webster]