Chorister

from WordNet (r) 3.0 (2006)

chorister
    n 1: a singer in a choir

from The Collaborative International Dictionary of English v.0.48

Chorister \Chor"is*ter\, n. [See {Chorus}.]
   1. One of a choir; a singer in a chorus. --Dryden.
      [1913 Webster]

   2. One who leads a choir in church music. [U. S.]
      [1913 Webster]