radio: [20] Radio began life, in the first decade of the 20th century, as an abbreviation of radiotelegraphy, a compound based on Latin radius. This originally meant ‘staff, stake’, but it is its secondary meanings that have contributed significantly to English: ‘spoke of a wheel’, for instance, lies behind English radius [16], and the notion of a ‘ray’ has produced radiant [15], radiate [17], radium [19] (etymologically a metal emitting ‘rays’), and indeed ray. Radiotelegraphy itself denoted the sending of messages by electromagnetic ‘rays’. Radar [20], coined in the USA in 1941, is an acronym formed from radio detection and ranging. => radar, radiate, radius, radium, ray
radio (n.)
"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]
In U.S., stations were broadcasting news and music by late 1920, but the new medium caught on nationwide as a fad in the winter of 1921-22; as late as July 1921 the "New York Times" had called it wireless telephony, and 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.
radio (v.)
1916, from radio (n.). Related: Radioed; radioing.
实用例句
1. When did the word " radio " come into common use?
" radio " 一词何时开始普遍使用的 呢 ?
来自《现代英汉综合大词典》
2. There has always been a difference between community radio and commercial radio.
社区广播电台和商业广播电台一直是有区别的。
来自柯林斯例句
3. All this, needless to say, had been culled second-hand from radio reports.
不用说，所有这些都是从电台报道中采集来的二手材料。
来自柯林斯例句
4. I use the short-wave radio to get the latest war news.
我用短波收音机收听最新的战事新闻。
来自柯林斯例句
5. If something's a sure-fire hit then Radio One will play it.
