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
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