The Collaborative International Dictionary of English v.0.48:

Limiter \Lim"it*er\ (l[i^]m"[i^]t*[~e]r), n.
   1. One who, or that which, limits.
      [1913 Webster]

   2. A friar licensed to beg within certain bounds, or whose
      duty was limited to a certain district. [Formerly written
      also limitour.] --Chaucer.
      [1913 Webster]

            A limitour of the Gray Friars, in the time of his
            limitation, preached many times, and had but one
            sermon at all times.                  --Latimer.
      [1913 Webster]

WordNet (r) 3.0 (2006):

limiter
    n 1: (electronics) a nonlinear electronic circuit whose output
         is limited in amplitude; used to limit the instantaneous
         amplitude of a waveform (to clip off the peaks of a
         waveform); "a limiter introduces amplitude distortion"
         [syn: limiter, clipper]