/gray"bak'/, n.1. any of various marine and aquatic animals that are dark gray above and light-colored or white below, as the gray whale, the alewife, certain whitefish, and certain sandpipers.2. Informal. a Confederate soldier.[1805-15; GRAY1 + BACK1]
* * *any of several North American fishes including the alewife (q.v.), cisco (see whitefish), and Menominee whitefish.
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