emitter

[ ih-mit-er ]

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.

emitter

/ 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

Word History and Origins

Origin of emitter¹

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

Example Sentences

In California, where the company currently does most of its work, the oil majors and transportation sector are the biggest emitters, according to Carney.

From Fortune

The fact that the US military is one of the biggest greenhouse gas emitters on the planet is not lost on local activists.

From Vox

Earlier this year, for example, a team from Columbia engineered a “feeling” robotic finger using overlapping light emitters and sensors in a way loosely similar to receptor fields.

From Singularity Hub 

The most difficult relationship he would probably face is the one with China, the world’s top greenhouse gas emitter, said Jason Bordoff, director of Columbia University’s global Energy Center.

From Washington Post

Last week, Japan said it would target net zero by 2050, and in September China, the world’s largest emitter, said it would target net zero by 2060.

From Fortune

Brazil is the fourth-largest greenhouse-gas emitter in the world, largely due to the deforestation of the Amazon.

From The Daily Beast

After all, as the leading emitter of greenhouse gases in the industrialized world, any agreement is meaningless without it.

From The Daily Beast

One such reaction uses alpha particles emitted by polonium-210 (or some other alpha emitter) to bombard the element beryllium.

From Project Gutenberg

Naturally, your lab and the machine were heavily shielded, but even so, a radio emitter next door would be bound to throw you off.

From Project Gutenberg

As an emitter he was only fair, but he was the best behoover I ever saw anywhere.

From Project Gutenberg

It is a powerful emitter of dark rays; it is also a powerful absorber.

From Project Gutenberg