1.
[syn: musician, instrumentalist, player]
2. artist who composes or conducts music as a profession;
The Collaborative International Dictionary of English v.0.48:
Musician \Mu*si"cian\, n. [F. musicien.]
One skilled in the art or science of music; esp., a skilled
singer, or performer on a musical instrument.
[1913 Webster]
WordNet (r) 3.0 (2006):
musician
n 1: someone who plays a musical instrument (as a profession)
[syn: musician, instrumentalist, player]
2: artist who composes or conducts music as a profession