Source : Webster's Revised Unabridged Dictionary (1913)

Emulator \Em"u*la`tor\, n. [L. aemulator.]
   One who emulates, or strives to equal or surpass.

         As Virgil rivaled Homer, Milton was the emulator of
         both.                                    --Bp.
                                                  Warburton.

Source : WordNet®

emulator
     n : someone who copies the words or behavior of another [syn: {copycat},
          {imitator}, {ape}, {aper}]

Source : Free On-Line Dictionary of Computing

emulator
     
        {Hardware} or {software} that performs {emulation}.
     
        (1995-05-12)