definition of
siemens

[1] #1 siemens n. [mho, reciprocal ohm, S] a unit of conductance equal to the reciprocal of an ohm. wn

[2] #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] #3 siemens n. [Siemens, Ernst Werner von Siemens] German electrical engineer (1816-1892). wn