The Collaborative International Dictionary of English v.0.48:

Electromotor \E*lec`tro*mo"tor\, n. [Cf. F. ['e]lectromoteur.]
   1. (Physics) A mover or exciter of electricity; as apparatus
      for generating a current of electricity.
      [1913 Webster]

   2. (Mech.) An apparatus or machine for producing motion and
      mechanical effects by the action of electricity; an
      electro-magnetic engine.
      [1913 Webster]