transmitter

noun

trans·​mit·​ter tran(t)s-ˈmi-tər How to pronounce transmitter (audio)
tranz-;
ˈtran(t)s-ˌmi-, 
ˈtranz- How to pronounce transmitter (audio)
: one that transmits: such as
a
: an apparatus for transmitting radio or television signals
b
: neurotransmitter

Examples of transmitter in a Sentence

Mosquitoes are the main transmitters of the disease.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
These small cell sites can be built by placing backpack-sized radio transmitters on street lights, building sides, or poles. — Michael Kan, PC Magazine, 23 Oct. 2026 Conventional antennas are typically connected to transmitters through conductive metal feeds. — New Atlas, 22 Oct. 2026 The new Insta360 Mic sits between the company’s Mic Pro and the budget-friendly Mic Air, which uses much smaller screenless transmitters. — Andrew Liszewski, The Verge, 22 Oct. 2026 Then the scientists flip the shark onto its back and tag it with a black acoustic transmitter. — Asia London Palomba, Christian Science Monitor, 20 Oct. 2026 See All Example Sentences for transmitter

Word History

First Known Use

1727, in the meaning defined above

Time Traveler
The first known use of transmitter was in 1727

Rhymes for transmitter

See All Rhymes for transmitter

Browse Nearby Words

transmittancy
transmitter
transmitting set
See all Nearby Words

Cite this Entry

“Transmitter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/transmitter. Accessed 27 Oct. 2026.

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Kids Definition

transmitter

noun
trans·​mit·​ter tran(t)s-ˈmit-ər How to pronounce transmitter (audio) tranz- How to pronounce transmitter (audio)
: one that transmits
especially : a device that sends out radio or television signals

Medical Definition

transmitter

noun
trans·​mit·​ter -ˈmit-ər How to pronounce transmitter (audio)
: one that transmits
specifically : neurotransmitter

More from Merriam-Webster on transmitter

Britannica.com: Encyclopedia article about transmitter

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