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