#1 siemens n. [mho, reciprocal ohm, S] a unit of conductance equal to the reciprocal of an ohm. wn
#2 siemens n. [Siemens, Karl Wilhelm Siemens, Sir Charles William Siemens] engineer who was a brother of Ernst Werner von Siemens and who moved to England (1823-1883). wn
#3 siemens n. [Siemens, Ernst Werner von Siemens] German electrical engineer (1816-1892). wn
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