emitter

American  

[ih-mit-er] / ɪˈmɪt ər /

noun

1. a person or thing that emits.

2. Electronics. an electrode on a transistor from which a flow of electrons or holes enters the region between the electrodes.

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emitter British  

/ ɪˈmɪtə /

noun

1. a person or thing that emits

2. a radioactive substance that emits radiation

   a beta emitter

3. the region in a transistor in which the charge-carrying holes or electrons originate

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Etymology

Origin of emitter

First recorded in 1880–85; emit + -er ¹

Example Sentences

The study in the journal Nature measures how human-caused warming affects economic growth and assigns a share of global damages to specific emitters -- from major economies to oil giants.

From Barron's

To get around this limitation, the researchers used spintronic emitters, a newer technology that generates short bursts of terahertz radiation.

From Science Daily

The program progressively lowers the amount of greenhouse gas emissions allowed in the state, and lets emitters buy and sell unused pollution credits, or allowances.

From Los Angeles Times

China is the world's biggest emitter of the gases that drive climate change, and has committed to peaking emissions by 2030, though some analysts expect it will do so early.

From Barron's

He added that "such a deep suppression was a clear sign of destructive interference, and it had to be caused by something near the emitters."

From Science Daily