Source : Webster's Revised Unabridged Dictionary (1913)

Kent bugle \Kent" bu"gle\ [Probably named after a Duke of Kent.]
   (Mus.)
   A curved bugle, having six finger keys or stops, by means of
   which the performer can play upon every key in the musical
   scale; -- called also {keyed bugle}, and key {bugle}.
   --Moore.

Bugle \Bu"gle\, n. [See {Bugle} a wild ox.]
   1. A horn used by hunters.

   2. (Mus.) A copper instrument of the horn quality of tone,
      shorter and more conical that the trumpet, sometimes
      keyed; formerly much used in military bands, very rarely
      in the orchestra; now superseded by the cornet; -- called
      also the {Kent bugle}.