Definitions for radio
ˈreɪ diˌoʊra·dio

Princeton's WordNet(5.00 / 1 vote)Rate this definition:

1. radio, radiocommunication, wireless(noun)

   medium for communication

2. radio receiver, receiving set, radio set, radio, tuner, wireless(noun)

   an electronic receiver that detects and demodulates and amplifies transmitted signals

3. radio, wireless(adj)

   a communication system based on broadcasting electromagnetic waves

4. radio(verb)

   indicating radiation or radioactivity

   "radiochemistry"

5. radio(verb)

   transmit messages via radio waves

   "he radioed for help"

Wiktionary(5.00 / 1 vote)Rate this definition:

1. radio(Noun)

   The technology that allows for the transmission of sound or other signals by modulation of electromagnetic waves.

2. radio(Noun)

   A device that can capture (receive) the signal sent over radio waves and render the modulated signal as sound.

3. radio(Noun)

   A device that can transmit radio signals.

4. radio(Noun)

   The continuous broadcasting of sound recordings via the Internet in the style of traditional radio.

5. radio(Verb)

   To use two-way radio to transmit (a message) (to another radio or other radio operator).

   I think the boat is sinking; we'd better radio for help. / I radioed him already. / Radio the coordinates this time. / OK. I radioed them the coordinates.

6. radio(Verb)

   To order or assist (to a location), using telecommunications.

Origin: From radius.

Freebase(3.80 / 5 votes)Rate this definition:

1. Radio

   Radio is the wireless transmission of signals through free space by electromagnetic radiation of a frequency significantly below that of visible light, in the radio frequency range, from about 30 kHz to 300 GHz. These waves are called radio waves. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space. Information, such as sound, is carried by systematically changing some property of the radiated waves, such as their amplitude, frequency, phase, or pulse width. When radio waves strike an electrical conductor, the oscillating fields induce an alternating current in the conductor. The information in the waves can be extracted and transformed back into its original form.

U.S. National Library of Medicine(3.00 / 3 votes)Rate this definition:

1. Radio

   The transmission and reception of electric impulses or signals by means of electric waves without a connecting wire, or the use of these waves for the wireless transmission of electric impulses into which sound is converted. (From Webster's 3d)

Suggested Resources(0.00 / 0 votes)Rate this definition:

1. radio

   Song lyrics by radio -- Explore a large variety of song lyrics performed by radio on the Lyrics.com website.

British National Corpus

1. Spoken Corpus Frequency

   Rank popularity for the word 'radio' in Spoken Corpus Frequency: #1221

2. Written Corpus Frequency

   Rank popularity for the word 'radio' in Written Corpus Frequency: #982

3. Nouns Frequency

   Rank popularity for the word 'radio' in Nouns Frequency: #509

Anagrams for radio »

1. aroid

How to pronounce radio?

1. 

   Alex

   US English

   

   Daniel

   British

   

   Karen

   Australian

   

   Veena

   Indian

How to say radio in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of radio in Chaldean Numerology is: 6

2. Pythagorean Numerology

   The numerical value of radio in Pythagorean Numerology is: 2

Examples of radio in a Sentence

1. Francis M. Faber Jr.:

   Does a red 'Radio Wagon' require an FCC license?

2. Emily Petroff:

   The first fast radio burst was discovered in 2007.

3. Dr Jaffe:

   People might not associate radio waves with carrying energy.

4. John Rogers:

   Grade school is the snooze button on the clock-radio of life.

5. Barack Obama:

   The drone that landed in the White House you buy in Radio Shack.

Images & Illustrations of radio

Popularity rank by frequency of use