radio

²radio

noun

plural ra·di·os

Definition of RADIO

1

a : the wireless transmission and reception of electric impulses or signals by means of electromagnetic waves b : the use of these waves for the wireless transmission of electric impulses into which sound is converted

2

: a radio message

3

: a radio receiving set

4

a : a radio transmitting station b : a radio broadcasting organization c : the radio broadcasting industry d : communication by radio

Examples of RADIO

1. The news was sent by radio.
2. I listen to the radio all the time.
3. I heard the news on the radio.
4. There's a problem with the car's radio.
5. The radio was playing very loudly.
6. The pilot's radio wasn't working.

Origin of RADIO

short for radiotelegraphy

First Known Use: 1903

Other Telecommunications Terms

Ethernet, intercept