The Collaborative International Dictionary of English v.0.48:
Fiddlestick \Fid"dle*stick`\, n. The bow, strung with horsehair, used in playing the fiddle; a fiddle bow. [1913 Webster]WordNet (r) 3.0 (2006):
fiddlestick n 1: a bow used in playing the violin [syn: fiddlestick, violin bow]