Gaucho \Gau"cho\ (gou"ch[-o]), n., pl. {Gauchos} (gou"ch[-o]z)
[Sp.]
One of the native inhabitants of the South American pampas,
of Spanish-American descent. They live mostly by rearing
cattle. Hence, a South American cowboy, especially on the
pampas.
[1913 Webster]
2. A member of an Indian population, somewhat affected by
Spanish blood, in the archipelagoes off the Chilean coast.
[Webster 1913 Suppl.]