radio

¹

[ rey-dee-oh ]

noun

, plural ra·di·os.

1. wireless telegraphy or telephony:

   speeches broadcast by radio.

2. an apparatus for receiving or transmitting radio broadcasts.
3. a message transmitted by radio.

adjective

1. pertaining to, used in, or sent by radio.
2. pertaining to or employing radiations, as of electrical energy.

verb (used with object)

, ra·di·oed, ra·di·o·ing.

1. to transmit (a message, music, etc.) by radio.
2. to send a message to (a person) by radio.

verb (used without object)

, ra·di·oed, ra·di·o·ing.

1. to transmit a message, music, etc., by radio.

radio-

²

1. a combining form with the meanings “dealing with radiant energy” ( radiometer ), “employing or dealing with radio waves” ( radioacoustics; radiolocation; radiotelephone ), “emitting rays as a result of the breakup of atomic nuclei” ( radioactive; radiocarbon ), “characterized by, employing or dealing with such rays” ( radiography; radiopaque; radiotherapy ).

radio-

¹

combining_form

1. denoting radio, broadcasting, or radio frequency

   radiogram

2. indicating radioactivity or radiation

   radiolucent

   radiochemistry

3. indicating a radioactive isotope or substance

   radioactinium

   radioelement

   radiothorium

radio

²

/ ˈreɪdɪəʊ /

noun

1. the use of electromagnetic waves, lying in the radio-frequency range, for broadcasting, two-way communications, etc
2. Also called (esp Brit)wireless an electronic device designed to receive, demodulate, and amplify radio signals from sound broadcasting stations, etc
3. a similar device permitting both transmission and reception of radio signals for two-way communications
4. the broadcasting, content, etc, of sound radio programmes

   he thinks radio is poor these days

5. 1. the occupation or profession concerned with any aspect of the broadcasting of sound radio programmes

      he's in radio

   2. modifier relating to, produced for, or transmitted by sound radio

      radio drama

6. short for radiotelegraph radiotelegraphy radiotelephone
7. modifier
   1. of, relating to, employed in, or sent by radio signals

      a radio station

   2. of, concerned with, using, or operated by radio frequencies

      radio spectrum

8. modifier (of a motor vehicle) equipped with a radio for communication

   radio car

verb

1. to transmit (a message) to (a person, radio station, etc) by means of radio waves

radio

/ rā′dē-ō /

Noun

1. The equipment used to generate, alter, transmit, and receive radio waves so that they carry information.

Adjective

1. Relating to or involving the emission of radio waves.

Other Words From

• pre·radi·o adjective

Word History and Origins

Origin of radio¹

1910–15; shortening of radiotelegraph or radiotelegraphy

Origin of radio²

< French, combining form representing Latin radius beam, ray, radius

Word History and Origins

Origin of radio¹

from French, from Latin radius ray; see radius

Origin of radio²

C20: short for radiotelegraphy

Example Sentences

Charles “Father” Coughlin, a raving anti-Semite, was one of the most popular radio hosts in the country.

From The Daily Beast

During coverage of that issue, Farrell went on a WSMB AM radio talk show to defend Duke.

From The Daily Beast

Speaking to a local radio station today Antonella Ramelli said the video gives her hope.

From The Daily Beast

Yet another video catches the sounds of the gunshots and shows Brinsley standing by the parked radio car.

From The Daily Beast

However, an article designed to act as a tie-in to the piece has been published as planned in the BBC magazine Radio Times.

From The Daily Beast

I am going to get a book about it, and that will tell us just what to do in getting a radio set established.

From Project Gutenberg

Jessie had noted down the things she thought it would be safe to order before speaking to her father about the radio matter.

From Project Gutenberg

That afternoon Mr. Norwood brought home the radio receiving set in the automobile.

From Project Gutenberg

For the next few days Jessie and Amy were busy almost all day long, and evening too, with the radio.

From Project Gutenberg

She was scared to death that the lightning would strike the house because of the radio aerial.

From Project Gutenberg

Related Words

• transmission
• wireless