\Foehn\, n. [G. dial. (Swiss), fr. L. Favonius west wind.
Cf. {Favonian}.] (Meteor.)
(a) A warm dry wind that often blows in the northern valleys
    of the Alps, due to the indraught of a storm center
    passing over Central Europe. The wind, heated by
    compression in its descent from the mountains, reaches
    the base, particularly in winter, dry and warm.
(b) Any similar wind, as the chinook, in other parts of the
    world.