Definition of Chinook
plural Chinook
or Chinooks
1
: a member of an American Indian people of the north shore of the Columbia River at its mouth
2
: a Chinookan language of the Chinook and other nearby peoples
3
or less commonly
chinook
a
: a warm moist southwest wind of the coast from Oregon northward
b
: a warm dry wind that descends the eastern slopes of the Rocky Mountains
