Exciter

n. person or thing which excites, one who arouses, one who stirs up

The word Exciter can be:A synonym for transmitter, especially widely used in radio technologyA component of an electrical generatorExciter bulb, a light source for reading the optical soundtrack on motion picture film Exciter (effect), audio effect unitExciter (album), a 2001 album by Depeche ModeExciter (band), a speed metal band from Ottawa, CanadaA song by the Japanese punk rock band Bomb Factory on the 1999 self-titled mini album Bomb FactoryA song by the band Judas Priest, from their 1978 album Stained Class"Yamaha Exciter", a snowmobile model manufactured by Yamaha Motor Corporation
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v. arouse, waken; excite, rouse; turn on, work

(n.)
One who, or that which, excites.
  

See "delighter."