Electromagnetic smog
noun
See electropollution
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- Electromagnetic-spectrum
noun 1. the entire spectrum, considered as a continuum, of all kinds of electric, magnetic, and visible radiation, from gamma rays having a wavelength of 0.001 angstrom to long waves having a wavelength of more than 1 million km. noun 1. the complete range of electromagnetic radiation from the longest radio waves (wavelength 105 metres) […]
- Electromagnetic-tape
noun 1. . noun 1. a ribbon of material, usually with a plastic base, coated on one side (single tape) or both sides (double tape) with a substance containing iron oxide, to make it sensitive to impulses from an electromagnet: used to record sound, images, data, etc. noun 1. a long narrow plastic or metal […]
- Electromagnetic-unit
noun 1. a unit, as an abampere, in the system of units derived from the magnetic effects of an electric current. Abbreviation: emu, EMU. noun 1. any unit that belongs to a system of electrical cgs units in which the magnetic constant is given the value of unity and is taken as a pure number […]
- Electromagnetic-wave
noun, Physics. 1. a wave produced by the acceleration of an electric charge and propagated by the periodic variation of intensities of, usually, perpendicular electric and magnetic fields. noun 1. a wave of energy propagated in an electromagnetic field See also electromagnetic radiation electromagnetic wave A wave of energy consisting of electric and magnetic fields, […]
- Electromagnetism
[ih-lek-troh-mag-ni-tiz-uh m] /ɪˌlɛk troʊˈmæg nɪˌtɪz əm/ noun 1. the phenomena associated with electric and magnetic fields and their interactions with each other and with electric charges and currents. 2. Also, electromagnetics. the science that deals with these phenomena. /ɪˌlɛktrəʊˈmæɡnɪˌtɪzəm/ noun 1. magnetism produced by an electric current 2. Also called electromagnetics. the branch of physics […]