transmitter

[trans-mit-er, tranz-] /trænsˈmɪt ər, trænz-/

noun

a person or thing that transmits.

Also called transmitting set. Radio. a device for sending electromagnetic waves; the part of a broadcasting apparatus that generates and modulates the radiofrequency current and conveys it to the antenna.

the part of a telephonic or telegraphic apparatus that converts sound waves or mechanical movements into corresponding electric waves or impulses.

Biochemistry, neurotransmitter.

Origin

1720-30; transmit + -er¹

Examples from the web for transmitter

Visual and audio information is relayed back to a research team's base camp via radio transmitter for observation and recording.
It's designed to release at a designated time, and can be retrieved using radio transmitter tracking.
It would send a signal from the air down to the transmitter to the video deck.
To tap a certain microwave link, your opponents must be in the line of sight of the transmitter.
The wireless transmitter that sends the weather data to the display console consumes about eight milliwatts.
One, bupropion, is an anti depressant that blocks the effects of the neuro transmitter noradrenaline.
In fact, maybe these cars could be designed with a small transmitter that triggers the charger to come on when needed.
Virtually every piece of electrically powered equipment acts as a radio transmitter, whether it is supposed to or not.
In effect, the natural flow can be modulated to create a gigantic low-frequency radio transmitter.
No matter how powerful the transmitter, radio waves simply cannot produce ionising radiation.

British Dictionary definitions for transmitter

transmitter

/trænzˈmɪtə/

noun

a person or thing that transmits

the equipment used for generating and amplifying a radio-frequency carrier, modulating the carrier with information, and feeding it to an aerial for transmission

the microphone in a telephone that converts sound waves into audio-frequency electrical signals

a device that converts mechanical movements into coded electrical signals transmitted along a telegraph circuit

(physiol) short for neurotransmitter

Word Origin and History for transmitter

"apparatus for receiving radio signals," 1934, agent noun from transmit.

transmitter in Science

transmitter

(trāns'mĭt-ər)
A device that converts sound, light, or electrical signals into radio, microwave, or other electrical signals of sufficient strength for the purpose of telecommunication. Compare receiver.