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Meaning of sou'wester

sou'•west•er

Pronunciation: (sou"wes'tur), [key]
— n.
  1. a waterproof hat, often of oilskin, having the brim very broad behind and slanted, worn esp. by seamen.
  2. an oilskin slicker, fastening with buckles, worn esp. by seamen in rough weather.
  3. southwester (def. 1). Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.