emulator
NounWordNet 3.0
Webster's Dictionary (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]
Free On-line Dictionary of Computing
emulator
Hardware or software that performs emulation.
(1995-05-12)