often attributive
1
: a radio wave having a wavelength between 10 and 100 meters
2
: a radio transmitter or receiver using shortwaves
3
: electromagnetic radiation having a wavelength equal to or less than that of visible light

Examples of shortwave in a Sentence

Recent Examples on the Web
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Anyone with a shortwave radio could hear him. Will Gottsegen, The Atlantic, 9 Mar. 2026 On Tuesday, expect a cloudier day as a weak shortwave moves through the region. Nelly Carreno, CBS News, 6 Apr. 2026 Season two may reveal who or what is behind that shortwave transmission. Brian Davids, HollywoodReporter, 24 Dec. 2025 That disruption caused shortwave radio blackouts on the sunlit side of the planet. Neetika Walter, Interesting Engineering, 24 Apr. 2026 See All Example Sentences for shortwave

Word History

First Known Use

1907, in the meaning defined at sense 1

Time Traveler
The first known use of shortwave was in 1907

Browse Nearby Words

Cite this Entry

“Shortwave.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/shortwave. Accessed 8 Jul. 2026.

Kids Definition

: a radio wave with a wavelength between 10 and 100 meters

Medical Definition

1
: a radio wave having a wavelength between 10 and 100 meters
2
: electromagnetic radiation having a wavelength equal to or less than that of visible light

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