emitter Hear it!

emitter definition

emit·ter (-ər)

noun

  1. one that emits; specif., a substance that emits particles a beta emitter
  2. in some transistors, the region or layer of semiconductor material, acting as an electrode, that sends electric current to the base

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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