radio

¹

[rey-dee-oh]

noun

plural

radios 

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)

radioed, radioing 

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

2. to send a message to (a person) by radio.

verb (used without object)

radioed, radioing 

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

   radiochemistry

   radiolucent

3. indicating a radioactive isotope or substance

   radioactinium

   radiothorium

   radioelement

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

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

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

Other Word Forms

• preradio adjective

Word History and Origins

Origin of radio-¹

1910–15; shortening of radiotelegraph or radiotelegraphy

Origin of radio-²

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

Word History and Origins

Origin of radio-¹

from French, from Latin radius ray; see _radius

Origin of radio-²

C20: short for radiotelegraphy

Example Sentences

Watch live on BBC One and iPlayer from 15:30 BST, listen on BBC Radio 5 Sports Extra; follow text commentary on the BBC Sport website and app.

From BBC

Sir Keir has said that he wants to close them all before the next general election though he alluded in an interview with BBC Radio 5 Live last week to bringing that deadline forward.

From BBC

One of Mr Péchier's lawyers said he had been waiting eight years to finally prove his innocence, and the former anaesthetist told RTL radio on Monday that it was a chance to lay out "all the cards on the table".

From BBC

Despite the serious charges against him, Mr Péchier has remained at liberty under judicial supervision and told French radio on Monday there was "no proof of any poisoning".

From BBC

"Alcaraz played at a level that not a single human being on the planet can reach at the moment," former Wimbledon champion Marion Bartoli said on BBC Radio 5 Live.

From BBC

Related Words

• transmission 
• wireless