hertz

UK: English: /hɜːts/, German: /hɛrts/ US: (hûrts)

Inflections of 'hertz' (n):

hertz

npl

hertzes

npl

WordReference Random House Unabridged Dictionary of American English © 2025

hertz  (hûrts), n., pl. hertz, hertz•es. 

1. Physics the SI unit of frequency, equal to one cycle per second. Abbr.: Hz

• named after H. R. Hertz 1925–30

Hertz  (hûrts, hârts; Ger. herts), n. 

Gu•stav  (gŏŏs′täf ), 1887–1975, German physicist: Nobel prize 1925. Hein•rich Ru•dolph  (hīn′riкн ro̅o̅′dôlf ), 1857–94, German physicist. Hertz•i•an  (hûrt′sē ən, hârt′-), adj. 

Collins Concise English Dictionary © HarperCollins Publishers::

hertz / hɜːts/ noun (hertz)

1. the derived SI unit of frequency; the frequency of a periodic phenomenon that has a periodic time of 1 second; 1 cycle per second
   Symbol: Hz

Etymology: 20th Century: named after Heinrich Rudolph Hertz

Collins Concise English Dictionary © HarperCollins Publishers::

Hertz / hɜːts hɛrts/ noun

1. Gustav ( ˈɡʊstaf ). 1887–1975, German atomic physicist. He provided evidence for the quantum theory by his research with Franck on the effects produced by bombarding atoms with electrons: they shared the Nobel prize for physics (1925)
2. Heinrich Rudolph ( ˈhainrɪç ˈruːdɔlf ). 1857–94, German physicist. He was the first to produce electromagnetic waves artificially

ˈHertzian adjective