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

Definition of transmitter

: one that transmits: such as
a : an apparatus for transmitting radio or television signals

Examples of transmitter in a Sentence

Mosquitoes are the main transmitters of the disease.
Recent Examples on the Web Nemo’s recording device floated to the surface, a yellow-and-red speck in a massive fjord system, broadcasting its presence with an ultra-high-frequency transmitter. Marguerite Holloway, The New Yorker, 31 Aug. 2021 One notable modernization: The audio is broadcast via FM transmitter as opposed to the boxy speakers that would dangle inside the car window. Alicia Wallace, CNN, 13 Aug. 2021 Last year, just days after the release of Max and Moritz, the inaugural cubs of the study, Max’s transmitter failed. New York Times, 23 July 2021 The models, designed by in-house data scientists and other employees, factor in a number of variables that can alter the strength of 5G signals, like buildings, bridges, terrain, the position of the transmitter, as well as other transmitters nearby. Sara Castellanos, WSJ, 4 Aug. 2021 Up forward, the antenna man was busy beaming the camera's signals to a receiving antenna atop the Capitol dome where they were bounced to the station's regular transmitter. Popular Mechanics Editors, Popular Mechanics, 29 July 2021 The implant will contain a layer of living synthetic cells, along with a sensor that measures temperature, a short-range wireless transmitter and a photo detector. Dieynaba Young, Smithsonian Magazine, 18 June 2021 The good news about RF headphones is they are paired to the transmitter and are ready to go out of the box. Jim Rossman, Dallas News, 20 May 2021 Major League Baseball is giving catchers in the Low A West league the option starting Aug. 3 to use a 12-button transmitter that can be strapped around their wristband with Velcro. Creg Stephenson |, al, 25 July 2021

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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Time Traveler for transmitter

Time Traveler

The first known use of transmitter was in 1727

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Dictionary Entries Near transmitter



transmitting set

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Statistics for transmitter

Last Updated

5 Sep 2021

Cite this Entry

“Transmitter.” Dictionary, Merriam-Webster, Accessed 16 Sep. 2021.

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More Definitions for transmitter



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 How to pronounce transmitter (audio) \

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 How to pronounce transmitter (audio) \

Medical Definition of transmitter

: one that transmits specifically : neurotransmitter

More from Merriam-Webster on transmitter

Nglish: Translation of transmitter for Spanish Speakers

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


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