# coulomb

[ koo-lom, -lohm, koo-lom, -lohm ]

noun
1. Electricity. the standard unit of quantity of electricity in the International System of Units (SI), equal to the quantity of charge transferred in one second across a conductor in which there is a constant current of one ampere. Abbreviation: C

## Origin of coulomb

1
First recorded in 1880–85; after Coulomb

## Other definitions for Coulomb (2 of 2)

Coulomb
[ koo-lom, -lohm, koo-lom, -lohm; French koo-lawn ]

noun
1. Charles Au·gus·tin de [sharl oh-gy-standuh], /ʃarl oʊ güˈstɛ̃ də/, 1736–1806, French physicist and inventor.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

## How to use coulomb in a sentence

• Electrostatics systems use the attraction of opposite charges and a physics property called coulomb forces to create movement.

• coulomb was the maker of the first instrument for measuring a current, which was known as the torsion balance.

Steam Steel and Electricity | James W. Steele
• In determining the exact quantity of an electric current, physicists make use of a device called a coulomb meter.

Physics | Willis Eugene Tower
• The coulomb is defined as the quantity of electricity delivered by a current of one ampere during one second.

Physics | Willis Eugene Tower
• The capacity of a conductor or condenser whose potential is raised by one volt when given a charge of one coulomb.

• Scarcely fifteen years ago was there anything more ridiculous, more naïvely antiquated, than coulomb's fluids?

## British Dictionary definitions for coulomb (1 of 2)

coulomb

/ (ˈkuːlɒm) /

noun
1. the derived SI unit of electric charge; the quantity of electricity transported in one second by a current of 1 ampere: Symbol: C

## Origin of coulomb

1
C19: named after Charles Augustin de Coulomb

## British Dictionary definitions for Coulomb (2 of 2)

Coulomb

/ (ˈkuːlɒm, French kulɔ̃) /

noun
1. Charles Augustin de (ʃarl oɡystɛ̃ də). 1736–1806, French physicist: made many discoveries in the field of electricity and magnetism

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

## Scientific definitions for coulomb (1 of 2)

coulomb

[ kōōlŏm′, kōōlōm′ ]

1. The SI derived unit used to measure electric charge. One coulomb is equal to the quantity of charge that passes through a cross-section of a conductor in one second, given a current of one ampere.

## Scientific definitions for Coulomb (2 of 2)

Coulomb

1. French physicist who was a pioneer in the study of magnetism and electricity. He is best known for the formulation of Coulomb's law, which he developed as a result of his investigations of Joseph Priestley's work on electrical repulsion. Coulomb also established a law governing the attraction and repulsion of magnetic poles. The coulomb unit of electric charge is named for him.