- Inca⇄Inca, noun, pl.-casor-ca.
1. a member of the group of South American Indians who ruled a large empire in Peru and other parts of South America before the Spanish conquest in the 1500's. The Incas were highly civilized.
2. a ruler or a member - inca⇄inca, noun.
a sea bird of the western coast of South America having dark plumage with a bundle of white plumes on each side of the head; inca tern.