The SI unit of electrical conductance; the conductance of a body with an electrical resistance of 1 ohm, allowing 1 ampere of current to flow per volt applied; equal to 1 mho. SYN: mho. [Sir William S., Ger. born British engineer, 1823–1883]
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sie·mens 'sē-mənz, 'zē- n, pl siemens a unit of conductance in the mks system equivalent to one ampere per volt
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n.
the SI units of electrical conductance, equal to the conductance between two points on a conductor when a potential difference of 1 volt between these points causes a current of 1 ampere to flow between them. Symbol: S.
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sie·mens (S) (seґmənz) the SI unit of conductance; it is the conductance of one ampere per volt in a body with one ohm resistance.Medical dictionary. 2011.