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

This limited-time deal gives you a massive 48% discount on a curved battle station hub packing a blistering refresh rate up to 280 hertz, 1ms response speed, and AMD FreeSync Premium technology. — Juhi Wadia, PC Magazine, 23 July 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

Rumbello emphasizes that the potential effectiveness of NeuroMD lies in the precision of its preset parameters, which include frequency measured in hertz, pulse duration, and duty cycle. — Daniel Fusch, USA Today, 28 May 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