The Collaborative International Dictionary of English v.0.48:

electrician \e`lec*tri"cian\ ([=e]`l[e^]k*tr[i^]sh"an), n.
   1. An investigator of electricity; one versed in the science
      of electricity. [archaic]
      [1913 Webster]

   2. a technician who installs, repairs, or maintains
      electrical wiring or electrical devices, especially in
      buildings.
      [PJC]

   3. a person who is licensed by a governmental board to
      install electrical wiring and devices in structures;
      called also a licensed electrician.
      [PJC]

WordNet (r) 3.0 (2006):

electrician
    n 1: a person who installs or repairs electrical or telephone
         lines [syn: electrician, lineman, linesman]