magnetic(of, relating to, caused by, or operating by magnetism) adjective [UK: mæɡ.ˈne.tɪk] [US: mæg.ˈne.tɪk]But the earth's magnetic field is very weak. = Aunque el campo magnético de la Tierra es muy débil.
campo magnéticonoun {m}
magnetic field [magnetic fields](a field of magnetic force) noun [UK: mæɡ.ˈne.tɪk fiːld] [US: mæg.ˈne.tɪk ˈfiːld]
electromagnetic(pertaining to electromagnetism) adjective [UK: ɪ.ˌlek.trəʊ.mæɡ.ˈne.tɪk] [US: ɪ.ˌlektro.ʊ.mæg.ˈne.tɪk]An infrared ray is electromagnetic radiation. = Los rayos infrarrojos son radiaciones electromagnéticas.