gigahertz

noun

giga·​hertz ˈji-gə-ˌhərts How to pronounce gigahertz (audio)
-ˌherts,
ˈgi- How to pronounce gigahertz (audio)
plural gigahertz
: a unit of frequency equal to one billion hertz

Examples of gigahertz in a Sentence

Recent Examples on the Web
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These distortions are especially problematic at higher frequencies like the 230 gigahertz (GHz) band — also known as the millimeter band, which the EHT currently uses — where signals are rapidly scrambled by atmospheric turbulence and water vapor. Samantha Mathewson, Space.com, 19 June 2025 GHz, or gigahertz, is a measurement of frequency in Wi-Fi networks. Kara McGinley, USA Today, 11 June 2025 This means that Qualcomm’s 5G modem continues to be the fastest in the land, with global band support for all bands ranging from 600 megahertz up to 41 gigahertz. Anshel Sag, Forbes.com, 31 Mar. 2025 That all adds up to a system that produced radiation between 232 and 260 gigahertz. IEEE Spectrum, 15 Mar. 2025 See All Example Sentences for gigahertz

Word History

First Known Use

1964, in the meaning defined above

Time Traveler
The first known use of gigahertz was in 1964

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Cite this Entry

“Gigahertz.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gigahertz. Accessed 6 Jul. 2025.

Kids Definition

gigahertz

noun
giga·​hertz -ˌhərts How to pronounce gigahertz (audio) -ˌhe(ə)rts How to pronounce gigahertz (audio)
: a unit of frequency equal to one billion hertz
Last Updated: - Updated example sentences
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