Definitions for radio
ˈreɪ diˌoʊra·dio

Princeton's WordNet(5.00 / 2 votes)Rate this definition:

1. radio, radiocommunication, wirelessnoun

   medium for communication

2. radio receiver, receiving set, radio set, radio, tuner, wirelessnoun

   an electronic receiver that detects and demodulates and amplifies transmitted signals

3. radio, wirelessadjective

   a communication system based on broadcasting electromagnetic waves

4. radioverb

   indicating radiation or radioactivity

   "radiochemistry"

5. radioverb

   transmit messages via radio waves

   "he radioed for help"

Wiktionary(5.00 / 1 vote)Rate this definition:

1. radionoun

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

   Etymology: From radius.

2. radionoun

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

   Etymology: From radius.

3. radionoun

   A device that can transmit radio signals.

   Etymology: From radius.

4. radionoun

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

   Etymology: From radius.

5. radioverb

   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.

   Etymology: From radius.

6. radioverb

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

   Etymology: From radius.

Freebase(3.83 / 6 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(2.50 / 4 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.

Matched Categories

1. • Communicate

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. Tom Joyner:

   Twenty-five years ago, there was no template for a syndicated Urban radio show and we worked hard to prove that we could successfully produce and market a national platform that would entertain, inform and empower African-American listeners.

2. Tim Doling:

   In 1951 the French and their allies had complete control of the south (of Vietnam), so all the real revolutionary activity would be happening in the north, they would have a transistor radio (in the tunnels) and they'd be transcribing news of what would be happening in the north.

3. Saptarshi Bandyopadhyay:

   The development of Lunar Crater Radio Telescope could produce some significant breakthroughs along the way, particularly for deployment technologies and the use of robots to build gigantic structures off Earth, i'm proud to be working with this diverse team of experts who inspire the world to think of big ideas that can make groundbreaking discoveries about the universe we live in.

4. Fulton County:

   It was actually his radio -- the bullet went through -- the radio saved him. It penetrated the radio.

5. Ukrainian President Petro Poroshenko:

   We need more to be able to defend ourselves and protect our soldiers. We need radar reconnaissance, drones, radio and night-vision equipment. I am going to talk to the Chancellor about this, it's not about weapons of attack -- we don't want to attack anyone.

Images & Illustrations of radio

Popularity rank by frequency of use