siemens(redirected from Friedrich von Siemens)
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n. pl. siemens Abbr. S
A unit of electrical conductance in the International System, equal to one ampere per volt.
[After Ernst Werner von Siemens.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
n, pl siemens
(Units) the derived SI unit of electrical conductance equal to 1 reciprocal ohm. Symbol: S Formerly called: mho
1. (Biography) 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. (Biography) 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 and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
n. (used with a sing. v.)
the SI unit of electrical conductance, equal to the reciprocal of the ohm and replacing the equivalent MKS unit (mho). Abbr.: S
[1930–35; after W. Siemens]
Sir William (Karl Wilhelm Siemens), 1823–83, British inventor, born in Germany.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||siemens - a unit of conductance equal to the reciprocal of an ohm|
conductance unit - a measure of a material's ability to conduct an electrical charge
|2.||Siemens - engineer who was a brother of Ernst Werner von Siemens and who moved to England (1823-1883)|
|3.||Siemens - German electrical engineer (1816-1892)|
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