Origin: Latin prefix trans-
Transmitter has 4 different meanings across 1 category:
any agent (person or animal or microorganism) that carries and transmits a disease
"mosquitos are vectors of malaria and yellow fever"
"fleas are vectors of the plague"
"aphids are transmitters of plant diseases"
"when medical scientists talk about vectors they are usually talking about insects"
set used to broadcast radio or tv signals
"The powerful transmitter on the mountain top successfully broadcast clear television signals to every home in the valley."
One who or that which transmits something (in all senses).
"The radio transmitter sent a clear signal across the valley to every receiver in town."
In plain English: A transmitter is any device that sends out signals, such as radio waves for music or data from your phone to other people nearby.
"The radio transmitter sent out clear signals to all nearby cars."
Usage: A transmitter refers to either the person sending information, such as in broadcasting, or the device itself used to send signals. Use this term specifically when describing the source of transmission rather than the receiver or general communication process.
The word transmitter is formed by adding the suffix -er to the verb transmit. It originally meant a person or device that sends something from one place to another, which remains its primary meaning today.