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[ih-mit-er] /ɪˈmɪt ər/
a person or thing that emits.
Electronics. an electrode on a transistor from which a flow of electrons or holes enters the region between the electrodes.
Origin of emitter
1880-85; emit + -er1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for emitter
  • In particle motion the traveling particle requires no medium, and its speed is fixed relative to its emitter.
  • But even for a beta emitter, tritium is extremely low energy.
  • German researchers have identified a previously unknown emitter of methane, a potent greenhouse gas.
  • Applying a voltage to the base permits the flow of current from emitter to collector.
  • German researchers identify a previously unknown emitter of methane.
  • Without any need for an emitter, a receiver could be designed to take pictures in the terahertz range.
  • These fast moving sprites should fly out from the center of the overall emitter.
  • Some previous efforts tried packing a microwave emitter into a bomb or missile.
  • The reflected light carries energy that helps keep the emitter hot, reducing the amount of fuel needed.
  • Silvery tungsten is not an efficient optical emitter.
British Dictionary definitions for emitter


a person or thing that emits
a radioactive substance that emits radiation: a beta emitter
the region in a transistor in which the charge-carrying holes or electrons originate
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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