transmitter

noun

trans·​mit·​ter tran(t)s-ˈmi-tər 

tranz-;

ˈtran(t)s-ˌmi-,

ˈtranz- 

: 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

During perimenopause, the decline in estrogen —which Noble explains as not just a hormone, but a neuroendocrine transmitter that helps the brain stay alert and energized—triggers the brain fog and can affect a variety of cognitive functions depending on the individual. —Alexa Mikhail, Flow Space, 14 Oct. 2025

In military settings, electronic warfare (EW) units use powerful transmitters to broadcast noise or false signals on the same frequencies, overwhelming or confusing the drone’s receiver. —Christopher McFadden, Interesting Engineering, 6 Oct. 2025

This simple transmitter plugs into the headphone jack on your screen and connects to your favorite noise-canceling headphones to drown out the sounds of other passengers while allowing for hours of entertainment with your own personal earbuds. —Merrell Readman, Travel + Leisure, 27 Sep. 2025

Anyone with a transmitter tuned to the right frequency and a powerful-enough amplifier can overwhelm faint GPS signals originating 12,000 miles above the Earth. —Paul Smith-Goodson, Forbes.com, 18 Sep. 2025

Word History

First Known Use

1727, in the meaning defined above

Rhymes for transmitter

• embitter
• emitter
• outfitter
• remitter
• submitter
• babysitter
• bitter
• critter
• fitter
• fritter
• glitter
• hitter

Kids Definition

transmitter

noun

trans·​mit·​ter tran(t)s-ˈmit-ər  tranz- 

: one that transmits

especially : a device that sends out radio or television signals

Medical Definition

transmitter

noun

trans·​mit·​ter -ˈmit-ər 

: one that transmits

specifically : neurotransmitter