ELECTRO-MAGNETIC

E‐lec′tro–mag‐net″ic (?), a. 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.