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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Refresh rates range from 180 hertz up to 280 hertz. Anshel Sag, Forbes, 27 Feb. 2025 But these songs can reach over 1,500 hertz, and are easy for killer whales to hear. Monica Cull, Discover Magazine, 7 Feb. 2025 Another promising approach is the prototype Active Acoustic Tunnel Detector, being developed at Idaho National Laboratory, which transmits up to 200 hertz of acoustic waves into the ground. Arthur Herman, Foreign Affairs, 26 Aug. 2014 In contrast, fight species — which stand their ground when attacked and include humpback, grey and bowhead whales — sing at higher frequencies, often over 1,500 hertz, which can easily be detected by killer whales. Brendan Rascius, Miami Herald, 18 Feb. 2025 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 10 Mar. 2025.

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)

ˈherts How to pronounce Hertz (audio)
ˈhərts
Gustav Ludwig 1887–1975 German physicist

Hertz

2 of 2

biographical name (2)

Heinrich Rudolf 1857–1894 German physicist

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