Dictionary

1radio

adjective ra·dio \ˈrā-dē-ˌō\

Definition of RADIO

1
:  of, relating to, or operated by radiant energy
2
:  of or relating to electric currents or phenomena (as electromagnetic radiation) of frequencies between about 3000 hertz and 300 gigahertz
3
a :  of, relating to, or used in radio or a radio set
b :  specializing in radio or associated with the radio industry
c (1) :  transmitted by radio
(2) :  making or participating in radio broadcasts
d :  controlled or directed by radio
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Origin of RADIO

2radio or radio-
First Known Use: 1887

Other Telecommunications Terms

Ethernet, intercept

Rhymes with RADIO

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2radio

noun

: the system or process that is used for sending and receiving signals through the air without using wires

: programs that are broadcast by radio

: a device that is used to receive the signals that are broadcast by radio

plural ra·di·os

Full 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

Origin of RADIO

short for radiotelegraphy
First Known Use: 1903

Other Telecommunications Terms

Ethernet, intercept

3radio

verb

: to send a message to someone by radio

Full Definition of RADIO

transitive verb
1
:  to send or communicate by radio
2
:  to send a radio message to
intransitive verb
:  to send or communicate something by radio

First Known Use of RADIO

1913

Other Telecommunications Terms

Ethernet, intercept
RADIO Defined for Kids

1radio

noun ra·dio \ˈrā-dē-ˌō\
plural ra·di·os

Definition of RADIO for Kids

1
:  the process that is used for sending or receiving signals by means of electromagnetic waves without a connecting wire
2
:  a device that receives signals sent by radio
3
:  programs that are broadcast by radio
4
:  a device used to both send and receive messages by radio
5
:  the radio broadcasting industry

2radio

adjective

Definition of RADIO for Kids

1
:  of or relating to radio waves
2
:  of, relating to, or used in radio broadcasting

3radio

verb
ra·di·oedra·di·o·ing

Definition of RADIO for Kids

:  to communicate or send a message to by radio
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