Electro-magnetic
Pronunciation : E*lec`tro-mag*net"ic
Part of Speech : a.
Definition : Defn: Of, Pertaining to, or produced by, magnetism which is developed by the passage of an electric current. Electro-magnetic engine, an engine in which the motive force is electro-magnetism. -- Electro-magnetic theory of light (Physics), a theory of light which makes it consist in the rapid alternation of transient electric currents moving transversely to the direction of the ray.
Source : Webster's Unabridged Dictionary, 1913