Source : Webster's Revised Unabridged Dictionary (1913)

Quichuan \Qui"chuan\, a.
   Designating, or pertaining to, a linguistic stock of South
   American Indians, including the majority of the civilized
   tribes of the ancient Peruvian Empire with some wild tribes
   never subjugated by the Incas. Most of these Indians are
   short, but heavy and strong. They are brachycephalic and of
   remarkably low cranial capacity. Nevertheless, they represent
   one of the highest of native American civilizations,
   characterized by agricultural, military, and administrative
   skill rather than by science or literature, although they
   were adept potters, weavers, and goldsmiths, and preserved by
   the aid of the mnemonic quipu a body of legendary lore in
   part written down since the introduction of writing.