\E*lec`tro-mo"tive\, a.
Producing electro-motion; producing, or tending to produce,
electricity or an electric current; causing electrical action
or effects.
{Electro-motive force} (Physics), the force which produces,
   or tends to produce, electricity, or an electric current;
   sometimes used to express the degree of electrification as
   equivalent to potential, or more properly difference of
   potential.