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- Dictionaryradio/ˈreɪdɪəʊ/
noun
- 1. the transmission and reception of electromagnetic waves of radio frequency, especially those carrying sound messages: "cellular phones are linked by radio rather than wires"
- 2. the activity or industry of broadcasting sound programmes to the public: "she has written much material for radio"
verb
- 1. communicate or send a message by radio: "we radioed for help"
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Radio is the technology of communicating using radio waves. Radio waves are electromagnetic waves of frequency between 3 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves. They are received by another antenna connected to a radio receiver.
Radio, sound communication by radio waves, usually through the transmission of music, news, and other types of programs from single broadcast stations to multitudes of individual listeners equipped with radio receivers. Learn more about the history of radio in this article.
RADIO definition: 1. a piece of electronic equipment used for listening to radio broadcasts: 2. the programmes that…. Learn more.
1. : of, relating to, or operated by radiant energy. 2. : of or relating to electric currents or phenomena (such as electromagnetic radiation) of frequencies between about 3000 hertz and 300 gigahertz. 3. a. : of, relating to, or used in radio or a radio set. b. : specializing in radio or associated with the radio industry. c (1)
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 waves is called a transmitter, while a machine that "picks up" the signals is called a receiver or antenna. A machine that does both jobs is a "transceiver".
Radio is the use of electromagnetic radiation to communicate electrical signals without wires, to create sound broadcasting, television, and radar. When used in the context of radio, MHz refers to the number of oscillations of electromagnetic radiation per second.
Radio definition: wireless telegraphy or telephony. See examples of RADIO used in a sentence.
RADIO meaning: 1. a piece of electronic equipment used for listening to radio broadcasts: 2. the programmes that…. Learn more.
RADIO meaning: 1 : the system or process that is used for sending and receiving signals through the air without using wires often used before another noun; 2 : programs that are broadcast by radio often used before another noun
noun. uk/ˈreɪdiəʊ/us. radionoun (BROADCASTS) A1. a piece of equipment used for listening to radio broadcasts: a car radio. More examples. This radio runs on batteries. A radio was playing in the background. Could you turn the radio down, please? Does this radio work? He fiddled with the wires to get the radio working again. Want to learn more?
