DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   percussion
       n 1: the act of playing a percussion instrument
       2: the act of exploding a percussion cap
       3: the section of a band or orchestra that plays percussion
          instruments [syn: percussion section, percussion, rhythm
    section]
       4: tapping a part of the body for diagnostic purposes [syn:
          percussion, pleximetry]