trans·​mit·​ter | \tran(t)s-ˈmi-tər, tranz-;ˈtran(t)s-ˌmi-, ˈtranz- \

Definition of transmitter 

: 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

Their mission is to blow up a key transmitter so German forces can’t radio in a warning about the big attack. Bryan Bishop, The Verge, "Overlord is a gloriously entertaining piece of B-movie schlock," 9 Nov. 2018 Mission managers will now send a command to the spacecraft, which is presently trailing Earth in a heliocentric orbit about 150 million kilometers away, to turn off the spacecraft's transmitters. Eric Berger, Ars Technica, "NASA is about to turn off the Kepler spacecraft, and it will drift away," 30 Oct. 2018 The basement, a 15,000-square-foot open space without obstructing beams, is where KGO’s studios and transmitters would be located. Bill Van Niekerken, San Francisco Chronicle, "Sutro Tower: San Francisco’s Eiffel Tower? Uh, no.," 13 Feb. 2018 This trajectory for the Reaper is evolving alongside a separate effort to harness increasingly smaller, lighter-weight sensors, transmitters and receivers. Fox News, "Air Force expands mission for Reaper attack drones, adds new weapons," 28 June 2018 The new sensors and transmitters started shipping out to patients this week. David Lazarus,, "Cutting-edge tech makes diabetes management easier (and less painful) than ever," 7 June 2018 The Rescue Coordination Center picked up the signal from an emergency locator transmitter at 9:40 a.m., the report states. Zaz Hollander, Anchorage Daily News, "Emergency beacon on plane in fatal crash near Whittier had wrong registration," 25 May 2018 These are different ticks from the transmitters of Lyme disease, which are deer ticks, also called black-legged ticks. Anna Groves, Milwaukee Journal Sentinel, "Don't panic over first Rocky Mountain spotted fever death in Wisconsin, but be careful," 12 July 2018 The mosquito is a species called Anopheles albimanus, the primary transmitter of the deadly disease in Central America and the Caribbean. Megan Molteni, WIRED, "How ‘Self-Limiting’ Mosquitos Can Help Eradicate Malaria," 21 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'transmitter.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of transmitter

1727, in the meaning defined above

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Statistics for transmitter

Last Updated

2 Dec 2018

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The first known use of transmitter was in 1727

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English Language Learners Definition of transmitter

: a device that sends out radio or television signals

: a person or thing that causes something to be spread or transmitted to others


trans·​mit·​ter | \trans-ˈmi-tər \

Kids Definition of transmitter

1 : someone or something that transmits something

2 : the part of a telephone that includes the mouthpiece and a device that picks up sound waves and sends them over the wire

3 : a device that sends out radio or television signals


trans·​mit·​ter | \-ˈmit-ər \

Medical Definition of transmitter 

: one that transmits specifically : neurotransmitter

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Rhyming Dictionary: Words that rhyme with transmitter

Spanish Central: Translation of transmitter

Nglish: Translation of transmitter for Spanish Speakers

Britannica English: Translation of transmitter for Arabic Speakers Encyclopedia article about transmitter

Comments on transmitter

What made you want to look up transmitter? Please tell us where you read or heard it (including the quote, if possible).


to make faulty or ineffective

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