The Collaborative International Dictionary of English v.0.48:

Typewriter \Type"writ`er\, n.
   1. An instrument for writing by means of type, a typewheel,
      or the like, in which the operator makes use of a sort of
      keyboard, in order to obtain printed impressions of the
      characters upon paper.
      [1913 Webster]

   2. One who uses such an instrument.
      [1913 Webster]

WordNet (r) 3.0 (2006):

typewriter
    n 1: hand-operated character printer for printing written
         messages one character at a time