- In the International System of Units, the derived unit of frequency; one (period or cycle of any periodic event) per second. Symbol: Hz
Etymology: Named after the German physicist w:Heinrich Rudolf Hertz, Heinrich Rudolf Hertz.
- French: hertz (a preceding vowel is not elided; : hertz)
- Italian: hertz (: hertz)
- Spanish: hercio , hertz (: hertz)
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