Double click on any word to get a popup explanation of the word and sample sentences
Dictionary | Wikipedia | Synonyms | Quotation | News

Radio Meaning and Definition in Dictionary

Definitions from Wordnet 2.0

  • a communication system based on broadcasting electromagnetic waves
  • an electronic receiver that detects and demodulates and amplifies transmitted signals
  • medium for communication
  • transmit messages via radio waves; "he radioed for help"
  • indicating radiation or radioactivity; "radiochemistry"

Definitions from Wiktionary

  • medium for communication ,
  • an electronic receiver that detects and demodulates and amplifies transmitted signals ,
  • a communication system based on broadcasting electromagnetic waves

Would you like to add your own explaination to this word 'Radio'?

Radio Meaning and Definition in Wikipedia

Radio is a way to send electromagnetic signals over a long distance, to deliver information from one place to another. A machine that sends radio signals is called a transmitter, while a machine that "picks up" the signals is called a receiver. (A machine that does both jobs is called a "transceiver".) When radio signals are sent out to many receivers at the same time, it is called a broadcast.

Television also uses radio signals to send pictures and sound. Radio signals can start engines moving so that gates open on their own from a distance. (See: Radio control.). Radio signals can be used to lock and unlock the doors in a car from a distance.

Sound can be sent by radio, sometimes through Frequency Modulation (FM) or Amplitude Modulation (AM).

Many people worked to make radio possible. After James Clerk Maxwell predicted them, Heinrich Rudolf Hertz in Germany first showed that radio waves exist. Guglielmo Marconi in Italy made radio into a practical tool of telegraphy, used mainly by ships at sea. He is sometimes said to have invented radio. Later inventors learned to transmit voices, which led to broadcasting of news, music and entertainment

Words and phrases related to 'Radio'

'Radio' example sentence in quotations

* My father hated radio and could not wait for television to be invented so he could hate that too. - Peter De Vries

* You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this And radio operates exactly the same way you send signals here, they receive them there. The only difference is that there is no cat. - Albert Einstein

* If it weren't for Philo T. Farnsworth, inventor of television, we'd still be eating frozen radio dinners. - Johnny Carson

Click here for more related quotations on 'Radio'

Radio Sample Sentences in News

  • How Radio History Hinted at the Conclusion of Serial
    The radio serial has been around for nearly a century — and some things haven't changed Read more on this news related to 'Radio'
  • After Panasonic takeover, Aupeo’s Personal Radio goes car-focused
    When Panasonic Automotive bought the internet radio service Aupeo in 2013, it was clear that the Berlin-based streamer was going to head off in a different direction from rivals such as Pandora. And now ... Read more on this news related to 'Radio'
  • WFMT to provide classical music to Shanghai radio in cultural exchange
    Chicago-based WFMT Radio Network has agreed to provide classical music programming to the Shanghai East Radio Co. as part of a cultural exchange between the U.S. and China. Read more on this news related to 'Radio'

Want to be famous? Add your definition to the meaning of 'Radio'

Search for more meaning of 'Radio' on the web