[ see-muhnz ]
/ ˈsi mənz /
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noun (used with a singular verb)

Electricity. the standard unit of electrical conductance in the International System of Units (SI), equal to the reciprocal of the ohm and replacing the equivalent MKS unit (mho, orreciprocal ohm ).Abbreviation: S



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The rainy weather could not ________ my elated spirits on my graduation day.

Origin of siemens

First recorded in 1930–35; named after Sir W. Siemens

Definition for siemens (2 of 2)

[ see-muhnz; German zee-muhns ]
/ ˈsi mənz; German ˈzi məns /


(Ernst) Wer·ner von [ernst -ver-nuhr fuhn], /ˈɛrnst ˈvɛr nər fən/, 1816–92, German inventor and electrical engineer.
his brother, Sir William Karl Wilhelm Siemens, 1823–83, English inventor, born in Germany.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for siemens (1 of 2)

/ (ˈsiːmənz) /

noun plural siemens

the derived SI unit of electrical conductance equal to 1 reciprocal ohmSymbol: S Formerly called: mho

British Dictionary definitions for siemens (2 of 2)

/ (ˈsiːmənz) /


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
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

Medical definitions for siemens

[ sēmənz ]

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.

Scientific definitions for siemens

[ sēmənz ]

Plural siemens

See mho.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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