Meaning of ELECTROMAGNETIC in English

e·lec·tro·mag·net·ic /ɪˌlektrəʊmæɡˈnetɪk◂ $ -troʊ-/ BrE AmE adjective technical

relating to both electricity and ↑ magnetism , or having both electrical and ↑ magnetic qualities:

electromagnetic waves

the electromagnetic spectrum (=different waves of energy, including light, heat, radio waves, and ↑ X-ray s )

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.