ohm

Valid in Scrabble

Scrabble points: 8
Words With Friends: 8
Letters: 3

Pronunciation

/əʊm/(UK)

See all 2 pronunciations

/əʊm/(UK) · /oʊm/(US)

Definition of ohm

1 sense · 1 part of speech · etymology included

noun

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.

“If the volt, ampere and ohm were taken as the absolute units, the practical units would be the ampere, begohm and begavolt, names just as convenient as ampere, coulomb and farad.”
“As the test light voltage touches terminal "C7", the module should switch, causing the ohmmeter to "overrange" if the meter is in the 1000-2000 ohms position.”

Definitions from Wiktionary, CC BY-SA.

Etymology

Named after Bavarian physicist Georg Ohm. A German surname, first recorded in the 12th century, from German Ohm (“uncle”), from Proto-West Germanic *auhaim (“maternal uncle”), from or related to Proto-Germanic *awô (“grandfather, paternal uncle”) + *haimaz (“home”). Doublet of oom and of dialectal eam (“uncle”).