shortwave.
An electromagnetic wave with a relatively short wavelength; specifically, one with a wavelength generally between 10 and 100 metres, corresponding to a frequency between 3 and 30 megahertz.
Meaning & usage
An electromagnetic wave with a relatively short wavelength; specifically, one with a wavelength generally between 10 and 100 metres, corresponding to a frequency between 3 and 30 megahertz.
Shortwaves are longer than microwaves.
An electromagnetic wave with a relatively short wavelength; specifically, one with a wavelength generally between 10 and 100 metres, corresponding to a frequency between 3 and 30 megahertz. Downward radiation in the shortwave (noun sense 1) frequency range which enters the Earth's atmosphere.
An electromagnetic wave with a relatively short wavelength; specifically, one with a wavelength generally between 10 and 100 metres, corresponding to a frequency between 3 and 30 megahertz. A waveband comprising radio waves in the shortwave (noun sense 1) frequency range, especially when used in broadcasting.
Many stations broadcast on shortwaves.
An electromagnetic wave with a relatively short wavelength; specifically, one with a wavelength generally between 10 and 100 metres, corresponding to a frequency between 3 and 30 megahertz. In full shortwave radio: a radio which is able to receive radio waves in the shortwave (noun sense 1) waveband.
Where this word comes from
The noun is derived from short (adjective) + wave (noun). The adjective is from an attributive use of the noun. The adverb is also derived from the noun.
Of a radio wave: having a wavelength of between 10 and 100 metres, corresponding to a frequency between 3 and 30 megahertz.
Of radio equipment: capable of receiving or transmitting radio signals at wavelengths in the above range.
Where this word comes from
The noun is derived from short (adjective) + wave (noun). The adjective is from an attributive use of the noun. The adverb is also derived from the noun.
Using radio waves having wavelengths of between 10 and 100 metres, corresponding to frequencies between 3 and 30 megahertz.
Where this word comes from
The noun is derived from short (adjective) + wave (noun). The adjective is from an attributive use of the noun. The adverb is also derived from the noun.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.