plural hertz
: a unit of frequency equal to one cycle per second
abbreviation Hz

Examples of hertz in a Sentence

Recent Examples on the Web
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As the atoms themselves act as the sensing medium, the same receiver can theoretically operate across an enormous frequency range—from hertz to terahertz—without needing multiple antenna systems. Rupendra Brahambhatt, Interesting Engineering, 17 May 2026 And a high-frequency sound of more than 1,000 hertz is produced by whistling within the larynx. Jackie Flynn Mogensen, Scientific American, 24 Feb. 2026 The other is surprisingly high -- often above 1,000 hertz -- about the same pitch as a tea kettle whistle. Liz Neporent, ABC News, 23 Feb. 2026 While the 27-inch G60H has a standard resolution of 1440P and an eye-popping 600-hertz refresh rate, there is once again a dual mode that, in 1080P, allows for a 1040-hertz refresh rate. Anshel Sag, Forbes.com, 16 Jan. 2026 See All Example Sentences for hertz

Word History

Etymology

Heinrich R. Hertz

First Known Use

circa 1928, in the meaning defined above

Time Traveler
The first known use of hertz was circa 1928

Browse Nearby Words

Cite this Entry

“Hertz.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hertz. Accessed 21 May. 2026.

Kids Definition

: a unit of frequency equal to one cycle per second
abbreviation Hz

Medical Definition

hertz

noun
: a unit of frequency equal to one cycle per second
abbreviation Hz

Biographical Definition

Hertz 1 of 2

biographical name (1)

Gustav Ludwig 1887–1975 German physicist

Hertz

2 of 2

biographical name (2)

Heinrich Rudolf 1857–1894 German physicist

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