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[koo-lom, -lohm, koo-lom, -lohm] /ˈku lɒm, -loʊm, kuˈlɒm, -ˈloʊm/
the standard unit of quanitity 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
1880-85; after Coulomb


[koo-lom, -lohm, koo-lom, -lohm; French koo-lawn] /ˈku lɒm, -loʊm, kuˈlɒm, -ˈloʊm; French kuˈlɔ̃/
Charles Augustin de
[sharl oh-gy-stan duh] /ʃarl oʊ güˈstɛ̃ də/ (Show IPA),
1736–1806, French physicist and inventor. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for coulomb


the derived SI unit of electric charge; the quantity of electricity transported in one second by a current of 1 ampere C
Word Origin
C19: named after Charles Augustin de Coulomb


/ˈkuːlɒm; French kulɔ̃/
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
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Word Origin and History for coulomb

1881, named for French chemist Charles-Augustin de Coulomb (1736-1806), who devised a method of measuring electrical quantity. It is the quantity of electricity conveyed in 1 second by a current of 1 ampere. The name is a French form of Columbus.

Online Etymology Dictionary, © 2010 Douglas Harper
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coulomb in Medicine

coulomb cou·lomb (kōō'lŏm', -lōm')
Abbr. C
The unit of electrical charge in the meter-kilogram-second system equal to the quantity of charge transferred in one second by a steady current of one ampere.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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coulomb in Science
  (k'lŏm', k'lōm')   
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.
Coulomb, Charles Augustin de 1736-1806.  
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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