trans·​mit·​ter tran(t)s-ˈmi-tər How to pronounce transmitter (audio)
ˈtranz- How to pronounce transmitter (audio)
: one that transmits: such as
: 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 On Saturdays at a backcountry warming hut used by snowmobilers, avalanche educators give basic rescue lessons including how to use avalanche beacons — transmitters that send a signal rescuers can use to find victims. Matthew Brown, Fortune, 3 Feb. 2024 The transmitter got upgraded, and the potential audience got way bigger. Matt Pearce, Los Angeles Times, 22 Dec. 2023 Seymour replaced the oldest transmitter west of the Mississippi with a new one in 1979. Mike Barnes, The Hollywood Reporter, 22 Dec. 2023 The capsule also contained a Global Navigation Satellite System receiver, a battery and an Iridium satellite communication system transmitter to broadcast its whereabouts. Discover Magazine, 17 Nov. 2023 According to prosecutors, that equipment included network interface controllers and a radio frequency transmitter, whose exports are limited for national security and anti-terrorism reasons. Nathan Solis, Los Angeles Times, 18 Jan. 2024 The agency's internal watchdog said a project to upgrade the three DSN sites with more 34-meter antennas and higher-power transmitters is five years behind schedule, and the cost of the upgrades has increased to $706 million. Stephen Clark, Ars Technica, 30 Aug. 2023 What to Consider: Connecting your earphones to the transmitter can sometimes be tricky. Katherine Alex Beaven, Travel + Leisure, 8 Dec. 2023 When Seymour arrived at KCRW-FM (89.9) in 1977, the station was housed in an elementary school adjacent to Santa Monica College, where staff could hear the hum of the nation’s oldest radio transmitter west of the Mississippi through the walls of the converted classrooms. Matt Pearce, Los Angeles Times, 22 Dec. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'transmitter.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1727, in the meaning defined above

Time Traveler
The first known use of transmitter was in 1727

Dictionary Entries Near transmitter

Cite this Entry

“Transmitter.” Dictionary, Merriam-Webster, Accessed 25 Feb. 2024.

Kids Definition


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


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

More from Merriam-Webster on transmitter

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!