'Emulator' definitions:

Definition of 'emulator'

(from WordNet)
noun
Someone who copies the words or behavior of another [syn: copycat, imitator, emulator, ape, aper]

Definition of 'Emulator'

From: GCIDE
  • Emulator \Em"u*la`tor\, n. [L. aemulator.] One who emulates, or strives to equal or surpass. [1913 Webster]
  • As Virgil rivaled Homer, Milton was the emulator of both. --Bp. Warburton. [1913 Webster]