hertz

noun

ˈhərts  ˈherts 

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

Engineered for students who take their gaming as seriously as their studies, this 25-inch Samsung Odyssey monitor packs an ultrafast 240-hertz refresh rate and 1ms GtG response time for blur-free action. — Juhi Wadia, PC Magazine, 5 Aug. 2026

Its 165-hertz refresh rate is ideal for gaming or watching sports. — Bestreviews, Mercury News, 4 Aug. 2026

Participants used a device at home that delivered flickering light and clicking sound at 40 hertz for one hour a day. — Samantha Agate, Charlotte Observer, 13 July 2026

Last fall, Modos debuted the Paper Monitor and Dev Kit, an open-source e-paper display kit that hit a record 75-hertz refresh rate. — IEEE Spectrum, 18 June 2026

Word History

Etymology

Heinrich R. Hertz

First Known Use

circa 1928, in the meaning defined above

Rhymes for hertz

• kilohertz

Kids Definition

hertz

noun

ˈhe(ə)rts  ˈhərts 

: a unit of frequency equal to one cycle per second

—abbreviation Hz

Medical Definition

hertz

noun

ˈhərts  ˈherts 

: a unit of frequency equal to one cycle per second

—abbreviation Hz

Biographical Definition

Hertz 1 of 2

biographical name (1)

ˈherts  ˈhərts 

Gustav Ludwig 1887–1975 German physicist

Hertz

2 of 2

biographical name (2)

Heinrich Rudolf 1857–1894 German physicist