radio wave

noun

: an electromagnetic wave with radio frequency

Examples of radio wave in a Sentence

Recent Examples on the Web
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Another gap exists for radio waves with wavelengths of 10 meters or more, which are reflected by Earth’s ionosphere; to observe these, astronomers have proposed building radio telescopes on the moon’s far side. Phil Plait, Scientific American, 15 May 2026 While Rubin cannot detect radio waves, photometric redshift data will help scientists work out the distances to FRBs if they can be sourced to a host galaxy Rubin can measure, which could help scientists determine the processes that trigger them. Quanta Magazine, 15 May 2026 Once the vessel and magnets are fully integrated, the machine will use radio waves to heat fusion fuel into plasma. Aman Tripathi, Interesting Engineering, 15 May 2026 In particular, MeerKAT was able to detect galaxies in the Zone of Avoidance because radio waves from their hydrogen gas can pass through our Milky Way's dust lanes relatively unhindered. Keith Cooper, Space.com, 4 May 2026 See All Example Sentences for radio wave

Word History

First Known Use

1915, in the meaning defined above

Time Traveler
The first known use of radio wave was in 1915

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Cite this Entry

“Radio wave.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radio%20wave. Accessed 21 May. 2026.

Kids Definition

radio wave

noun
: an electromagnetic wave with radio frequency

Medical Definition

radio wave

noun
ra·​dio wave ˈrād-ē-ō-ˌwāv How to pronounce radio wave (audio)
: an electromagnetic wave with radio frequency

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