e·lec·tro·mag·net·ic /ɪˌlektrəʊmæɡˈnetɪk◂ $ -troʊ-/ adjectiveadj technical relating to both electricity and magnetism, or having both electrical and magnetic qualities 电磁的;电磁体的 electromagnetic waves 电磁波
the electromagnetic spectrum (=different waves of energy, including light, heat, radio waves, and x-rays) 电磁波谱