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ohm

[ohm]
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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
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Origin of ohm

First recorded in 1861; named after G. S. Ohm
Related formsohm·ic [oh-mik] /ˈoʊ mɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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.

    The Library of Work and Play: Electricity and Its Everyday Uses

    John F. Woodhull

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


British Dictionary definitions for ohmic

ohmic

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

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 ampereSymbol: Ω
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Word Origin

C19: named after Georg Simon Ohm

Ohm

noun
  1. Georg Simon (ˈɡeːɔrk ˈziːmɔn). 1787–1854, German physicist, who formulated the law named after him
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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

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.

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Online Etymology Dictionary, © 2010 Douglas Harper

ohmic in Medicine

ohm

(ōm)
n. Symbol Ω
  1. 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.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

ohmic in Science

ohm

[ōm]
  1. 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.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ohmic in Culture

ohm

[(ohm)]

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

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The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.