Definition of drum corps in English:

drum corps

noun

North American
  • 1A division or unit of an army who march and play drums, especially as part of ceremonial duties.

  • 2A marching band or similar group, playing brass and percussion instruments and accompanied by performers who do set routines with batons, flags, etc., to the music, especially in competitions or parades.

Origin

Mid 19th century; earliest use found in The Spirit of the Times: a chronicle of the turf, agriculture, field sports, literature and the stage.