Electromagnetism

[ɪ,lektrəʊ'mægnɪtɪz(ə)m] or [ɪ,lɛktro'mæɡnətɪzəm]

Definition

(noun.) the branch of physics concerned with electromagnetic phenomena.

(noun.) magnetism produced by an electric current; 'electromagnetism was discovered when it was observed that a copper wire carrying an electric current can magnetize pieces of iron or steel near it'.

Checker: Wilmer--From WordNet