mho(redirected from mhos)
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n. pl. mhos
[Backward spelling of ohm.]
n, pl mhos
(Units) the former name for siemens
[C19: formed by reversing the letters of ohm (first used by Lord Kelvin)]
n. (used with a sing. v.)
the SI unit of electrical conductance, equal to the reciprocal of the ohm and replacing the equivalent MKS unit (mho). Abbr.: S
[1930–35; after W. Siemens]
Sir William (Karl Wilhelm Siemens), 1823–83, British inventor, born in Germany.