The Collaborative International Dictionary of English v.0.48:

Sculptor \Sculp"tor\, n. [L. sculptor, fr. sculpere, sculptum,
   to carve; cf. scalpere to cut, carve, scratch, and Gr. ? to
   carve: cf. F. sculpteur.]
   1. One who sculptures; one whose occupation is to carve
      statues, or works of sculpture.
      [1913 Webster]

   2. Hence, an artist who designs works of sculpture, his first
      studies and his finished model being usually in a plastic
      material, from which model the marble is cut, or the
      bronze is cast.
      [1913 Webster]

WordNet (r) 3.0 (2006):

sculptor
    n 1: an artist who creates sculptures [syn: sculptor,
         sculpturer, carver, statue maker]
    2: a faint constellation in the southern hemisphere near Phoenix
       and Cetus