[rey-dee-oh] /ˈreɪ diˌoʊ/
noun, plural radios.
wireless telegraphy or telephony:
speeches broadcast by radio.
an apparatus for receiving or transmitting radio broadcasts.
a message transmitted by radio.
pertaining to, used in, or sent by radio.
pertaining to or employing radiations, as of electrical energy.
verb (used with object), radioed, radioing.
to transmit (a message, music, etc.) by radio.
to send a message to (a person) by radio.
verb (used without object), radioed, radioing.
to transmit a message, music, etc., by radio.
noun (pl) -os
the use of electromagnetic waves, lying in the radio-frequency range, for broadcasting, two-way communications, etc
Also called (esp Brit) wireless. an electronic device designed to receive, demodulate, and amplify radio signals from sound broadcasting stations, etc
a similar device permitting both transmission and reception of radio signals for two-way communications
the broadcasting, content, etc, of sound radio programmes: he thinks radio is poor these days
short for radiotelegraph, radiotelegraphy, radiotelephone
(modifier) (of a motor vehicle) equipped with a radio for communication: radio car
verb -os, -oing, -oed
to transmit (a message) to (a person, radio station, etc) by means of radio waves
“wireless transmission of voice signals with radio waves,” 1907, abstracted from earlier combinations such as radio-receiver (1903), radiophone (1881), radio-telegraphy (1898), from radio- as a comb. form of Latin radius “beam.” Use for “radio receiver” is first attested 1913; sense of “sound broadcasting as a medium” is from 1913.
It is not a dream, but a probability that the radio will demolish blocs, cut the strings of red tape, actuate the voice “back home,” dismantle politics and entrench the nation’s executive in a position of power unlike that within the grasp of any executive in the world’s history. [“The Reading Eagle,” Reading, Pa., U.S.A., March 16, 1924]
Wireless remained more widespread until World War II, when military preference for radio turned the tables. As an adjective by 1912, “by radio transmission;” meaning “controlled by radio” from 1974. Radio _______ “radio station or service from _______” is recorded from 1920. A radio shack (1946) was a small building housing radio equipment.
1916, from radio (n.). Related: Radioed; radioing.
Noun The equipment used to generate, alter, transmit, and receive radio waves so that they carry information.
Adjective Relating to or involving the emission of radio waves.
- Radio Free Europe/Radio Liberty
noun 1. a federally funded private organization that broadcasts news and entertainment to formerly Communist countries, especially the Russian Federation, Czech Republic, Poland, Hungary, Romania, and Bulgaria: founded 1952.
[rey-dee-oh-el-uh-muh nt] /ˌreɪ di oʊˈɛl ə mənt/ noun, Chemistry. 1. a radioactive . /ˌreɪdɪəʊˈɛlɪmənt/ noun 1. an element that is naturally radioactive
[rey-dee-oh-free-kwuh n-see] /ˌreɪ di oʊˈfri kwən si/ noun, plural radiofrequencies. 1. the of the transmitting waves of a given radio message or broadcast. 2. a within the range of radio transmission, from about 15,000 to 10 11 hertz. Abbreviation: RF, rf.
- Radio-frequency identification
hardware (RFID) Small radio transponders or “tags” designed to be attached to items like products in a supermarket to allow the items to be identified and tracked by a remote system. Typically an RFID tag includes an integrated circuit that stores data and interfaces to the antenna, allowing the stored data to be retrieved by […]