emitter
Americannoun
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a person or thing that emits.
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Electronics. an electrode on a transistor from which a flow of electrons or holes enters the region between the electrodes.
noun
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a person or thing that emits
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a radioactive substance that emits radiation
a beta emitter
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the region in a transistor in which the charge-carrying holes or electrons originate
Etymology
Origin of emitter
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The United States is the world's leading emitter of methane from its oil and gas sector, followed by Russia, according to the International Energy Agency.
From Barron's ● Oct. 27, 2026
In China, however, ELI hasn’t been training litigators and judges to pursue comparable strategies against the world’s largest emitter of greenhouse gases.
From The Wall Street Journal ● Jul. 27, 2026
China is the world's biggest consumer of coal and the largest emitter of greenhouse gases, even as it installs renewable energy capacity at record speed.
From BBC ● May 23, 2026
China is the world's top consumer of coal and the largest greenhouse gas emitter, despite installing renewable energy capacity at record speed.
From Barron's ● May 23, 2026
Their method involved bombarding aluminum foils with alpha rays produced by their usual rudimentary source, a hunk of the inexpensive but vigorous alpha emitter polonium.
From "Big Science" by Michael Hiltzik
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
