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Siemens

[see-muh nz; German zee-muh ns] /ˈsi mənz; German ˈzi məns/
noun
1.
(Ernst) Werner von
[ernst ver-nuh r fuh n] /ˈɛrnst ˈvɛr nər fən/ (Show IPA),
1816–92, German inventor and electrical engineer.
2.
his brother, Sir William (Karl Wilhelm Siemens) 1823–83, English inventor, born in Germany.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for e w von siemens

siemens

/ˈsiːmənz/
noun (pl) siemens
1.
the derived SI unit of electrical conductance equal to 1 reciprocal ohm S Formerly called mho

Siemens

/ˈsiːmənz/
noun
1.
Ernst Werner von (ɛrnst ˈvɛrnər fɔn). 1816–92, German engineer, inventor, and pioneer in telegraphy. Among his inventions are the self-excited dynamo and an electrolytic refining process
2.
his brother, Sir William, original name Karl Wilhelm Siemens. 1823–83, British engineer, born in Germany, who invented the open-hearth process for making steel
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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e w von siemens in Medicine

siemens sie·mens (sē'mənz)
n. pl. siemens
A unit of electrical conductance in the International System of Units, equal to one ampere per volt.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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e w von siemens in Science
siemens
  (sē'mənz)   
Plural siemens
See mho.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for e w von siemens

siemens

unit of electrical conductance. In the case of direct current (DC), the conductance in siemens is the reciprocal of the resistance in ohms (S = amperes per volts); in the case of alternating current (AC), it is the reciprocal of the impedance in ohms. A former term for the reciprocal of the ohm is the mho (ohm spelled backward). It is disputed whether the siemens was named after the German-born engineer-inventor Sir William Siemens (1823-83) or his brother, the electrical engineer Werner von Siemens (1816-92).

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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