Source : Webster's Revised Unabridged Dictionary (1913)

Bannock \Ban"nock\, n. [Gael. bonnach.]
   A kind of cake or bread, in shape flat and roundish, commonly
   made of oatmeal or barley meal and baked on an iron plate, or
   griddle; -- used in Scotland and the northern counties of
   England. --Jamieson.

   {Bannock fluke}, the turbot. [Scot.]

Source : WordNet®

bannock
     n : a flat bread made of oat or barley flour; common in New
         England and Scotland