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# ohm

[ohm] /oʊm/
noun
1.
the standard unit of electrical resistance in the International System of Units (SI), formally defined to be the electrical resistance between two points of a conductor when a constant potential difference applied between these points produces in this conductor a current of one ampere. The resistance in ohms is numerically equal to the magnitude of the potential difference. Symbol: Ω.
Origin of ohm
1861
First recorded in 1861; named after G. S. Ohm
Related forms
ohmic
[oh-mik] /ˈoʊ mɪk/ (Show IPA),
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for ohmic
Historical Examples
• In the experiment which we have just performed impedance is fifty times as important a factor as ohmic resistance.

John F. Woodhull
• It is impossible to overcome it entirely, but merely in part, for the ohmic resistance cannot be overcome.

Thomas Commerford Martin
British Dictionary definitions for ohmic

## ohmic

/ˈəʊmɪk/
1.
of or relating to a circuit element, the electrical resistance of which obeys Ohm's law

## ohm

/əʊm/
noun
1.
the derived SI unit of electrical resistance; the resistance between two points on a conductor when a constant potential difference of 1 volt between them produces a current of 1 ampere Ω
Word Origin
C19: named after Georg Simon Ohm

## Ohm

/əʊm/
noun
1.
Georg Simon (ˈɡeːɔrk ˈziːmɔn). 1787–1854, German physicist, who formulated the law named after him
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
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Word Origin and History for ohmic

## ohm

n.

unit of electrical resistance, 1867, in recognition of German physicist Georg S. Ohm (1789-1854), who determined the law of the flow of electricity. Originally proposed as ohma (1861) as a unit of voltage. Related: ohmage; ohmic; ohmeter.

Online Etymology Dictionary, © 2010 Douglas Harper
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ohmic in Medicine

ohm (ōm)
n.
Symbol Ω
A unit of electrical resistance equal to that of a conductor in which a current of one ampere is produced by a potential of one volt across its terminals.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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ohmic in Science
 ohm   (ōm)    The SI derived unit used to measure the electrical resistance of a material or an electrical device. One ohm is equal to the resistance of a conductor through which a current of one ampere flows when a potential difference of one volt is applied to it.
The American Heritage® Science Dictionary
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ohmic in Culture
ohm [(ohm)]

The unit of electrical resistance, named after the nineteenth-century German physicist Georg Ohm.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
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### Word Value for ohmic

12
13
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