Someone who copies the words or behavior of another

• Rival of a sort
• It will let you play Atari games on your computer
• Rival, perhaps
• One rivalling Greek character spelt out for the audience afterwards
• Impersonation expert

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
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.

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1580s, "rival, competitor," from Latin aemulator "a zealous imitator, imitative rival," agent noun from aemulari "to rival" (see emulation ). The meaning "imitative rival" in English is from 1650s.

WordNet Word definitions in WordNet
n. someone who copies the words or behavior of another [syn: copycat , imitator , ape , aper ]

Wikipedia Word definitions in Wikipedia
In computing , an emulator is hardware or software that enables one computer system (called the host ) to behave like another computer system (called the guest ). An emulator typically enables the host system to run software or use peripheral devices designed ...