ohm

Etymology

Named after Bavarian physicist Georg Ohm. A German surname, first recorded in the 12th century, from German Ohm (“uncle”), from a Proto-Germanic word. Compare Dutch oom (“uncle”).

noun

  1. In the International System of Units, the derived unit of electrical resistance; the electrical resistance of a device across which a potential difference of one volt causes a current of one ampere. Symbol: Ω

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