electromagnetic wave

electromagnetic wave
noun
radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge
Hypernyms: ↑radiation
Hyponyms:
Part Meronyms: ↑photon

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noun
: one of the waves that are propagated by simultaneous periodic variations of electric and magnetic field intensity, the two kinds of oscillation being perpendicular to each other, and that include radio waves, infrared, visible light, ultraviolet, X rays, and gamma rays in ascending order of frequency

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Physics.
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. Also called electric wave.
[1905-10]

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electromagnetic wave UK US noun [countable] [singular electromagnetic wave plural electromagnetic waves] physics
a wave of energy within the electromagnetic spectrum
Thesaurus: physical forces and processeshyponym

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electromagnetic wave,
a wave of energy made up of an electric and a magnetic field, generated when an electric charge oscillates or is accelerated. Light waves and radio waves are electromagtic waves, according to their frequencies and wavelengths. The chief kinds of electromagnetic waves, ranging from longest to shortest wave length, are long radio waves, short radio waves, infrared rays, visible light, ultraviolet light, X rays, and gamma rays. »

In 1873, Maxwell showed that an oscillating electrical circuit should radiate electromagnetic waves (Sears and Zemansky).


Useful english dictionary. 2012.

Look at other dictionaries:

  • electromagnetic wave — n. a wave propagated through space or matter by oscillating electric and magnetic fields: in a vacuum it travels at the speed of light …   English World dictionary

  • electromagnetic wave — n one of the waves that are propagated by simultaneous periodic variations of electric and magnetic field intensity and that include radio waves, infrared, visible light, ultraviolet, X rays, and gamma rays …   Medical dictionary

  • electromagnetic wave — UK / US noun [countable] Word forms electromagnetic wave : singular electromagnetic wave plural electromagnetic waves physics a wave of energy within the electromagnetic spectrum …   English dictionary

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  • electromagnetic wave — wave of radiation from the electromagnetic spectrum …   English contemporary dictionary

  • electromagnetic wave — Physics. 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. Also called electric wave. [1905 10] * * * …   Universalium

  • electromagnetic wave — elec′tromagnet′ic wave′ n. phs elm a wave propagated at the speed of light by the periodic variations of electric and magnetic fields • Etymology: 1905–10 …   From formal English to slang

  • electromagnetic wave — noun electromagnetic radiation, such as light and radio waves …   Wiktionary

  • electromagnetic wave — noun Date: 1906 one of the waves that are propagated by simultaneous periodic variations of electric and magnetic field intensity and that include radio waves, infrared, visible light, ultraviolet, X rays, and gamma rays …   New Collegiate Dictionary

  • electromagnetic wave — /əˌlɛktroʊmægnɛtɪk ˈweɪv/ (say uh.lektrohmagnetik wayv) noun a moving disturbance in space produced by the acceleration of an electric charge; consisting of an electric field and a magnetic field at right angles to each other, both moving at the… …   Australian-English dictionary

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