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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


(ˈsi mənz)

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]


(ˈsi mənz)

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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.siemens - a unit of conductance equal to the reciprocal of an ohmsiemens - 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)
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The RKW's first chairman was the Berlin industrialist, Carl Friedrich von Siemens. In his opening remarks to the founding meeting in Berlin in June, 1921, Siemens told those gathered that the above organizations had requested he take on the responsibility of founding and heading a Reichskuratorium that would serve as an umbrella organization for the growing rationalization efforts in Germany.(33)
The contribution by Lothar Schoen on Carl Friedrich von Siemens covers approximately thirty-nine pages and demonstrates a similar structure.
Under the leadership of Carl Friedrich von Siemens, efforts were made to find domestic sources for key inputs and to work more closely with foreign firms.