Source : Webster's Revised Unabridged Dictionary (1913)

Corbel \Cor"bel\, v. t.
   To furnish with a corbel or corbels; to support by a corbel;
   to make in the form of a corbel.

   {To corbel out}, to furnish with a corbel of courses, each
      projecting beyond the one next below it.

Corbel \Cor"bel\, n. [F. corbeau, for older corbel, dim. of L.
   corbis basket. (Corbels were often in the form of a basket.)
   See {Corbeil}.] (Arch.)
   A bracket supporting a superincumbent object, or receiving
   the spring of an arch. Corbels were employed largely in
   Gothic architecture.

   Note: A common form of corbel consists of courses of stones
         or bricks, each projecting slightly beyond the next
         below it.

Source : WordNet®

corbel
     v : furnish with a corbel

corbel
     n : (architecture) a triangular bracket of brick or stone
         (usually of slight extent) [syn: {truss}]