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

People with pacemakers also have to avoid things like radio transmitters, security wands, MRI machines and more to reduce the risk of malfunction. —Alex Knapp, Forbes.com, 5 June 2026

The idea involved rapidly switching radio frequencies between transmitter and receiver to create secure communication. —Kaif Shaikh, Interesting Engineering, 28 May 2026

The sound was moving, and Larry raced for our plane and turned on the emergency transmitter. —Ben East, Outdoor Life, 14 May 2026

Walt Simpson / Business Wire via AP The survivors had no way to communicate or call for help — but fortunately their emergency locator transmitter beacon led rescuers to the scene, Piowaty said. —David K. Li, NBC news, 13 May 2026

Word History

First Known Use

1727, in the meaning defined above

Rhymes for transmitter

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

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