DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   bones
       n 1: a percussion instrument consisting of a pair of hollow
            pieces of wood or bone (usually held between the thumb and
            fingers) that are made to click together (as by Spanish
            dancers) in rhythm with the dance [syn: bones,
            castanets, clappers, finger cymbals]