# ohms

## O.H.M.S.

On His Majesty's Service; On Her Majesty's Service.
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## ohm

[ohm]
noun
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:
1861; named after G. S. Ohm

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World English Dictionary
 ohm (əʊm) —n Ω 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 [C19: named after Georg Simon Ohm]

 Ohm (əʊm) —n Georg Simon (ˈɡeːɔrk ˈziːmɔn). 1787--1854, German physicist, who formulated the law named after him

 OHMS —abbreviation for On Her (or His) Majesty's Service

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

ohm
"unit of electrical resistance," 1867, in allusion to Ger. 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.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

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.

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American Heritage
Science Dictionary
 ohm   (ōm)  Pronunciation Key  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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Cultural Dictionary
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
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American Heritage
Abbreviations & Acronyms
 OHMSOn Her (or His) Majesty's Service
The American Heritage® Abbreviations Dictionary, Third Edition