siemens
n. C / Un. the standard unit used to measure how easily electricity flows through a material. It is the opposite of an ohm, which measures resistance.
n. the SI unit of electrical conductance, equivalent to one ampere per volt. It represents the reciprocal of the ohm.
The technician measured the conductance in siemens.
In electrical engineering, the siemens is used to quantify how effectively a component allows current to pass, a property that is critical when designing high-efficiency power grids.
Usage
When used as a unit of measurement, the word is usually written in lowercase; the symbol is a capital 'S'.
Pitfall
one siemenone siemensThe name of the unit is 'siemens' in both singular and plural forms; 'siemen' is not a word.
Last updated May 6, 2026