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

* * *

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

* * *

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]

* * *

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

* * *

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.

Игры ⚽ Нужна курсовая?

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

  • electromagnetic wave — elektromagnetinė banga statusas T sritis fizika atitikmenys: angl. electromagnetic wave vok. elektromagnetische Welle, f rus. электромагнитная волна, f pranc. onde électromagnétique, f …   Fizikos terminų žodynas

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

  • Electromagnetic wave equation — The electromagnetic wave equation is a second order partial differential equation that describes the propagation of electromagnetic waves through a medium or in a vacuum. The homogeneous form of the equation, written in terms of either the… …   Wikipedia

  • electromagnetic wave spectrum — elektromagnetinių bangų spektras statusas T sritis fizika atitikmenys: angl. electromagnetic wave spectrum vok. elektromagnetisches Wellenspektrum, n rus. спектр электромагнитных волн, m pranc. spectre d’ondes électromagnétiques, m …   Fizikos terminų žodynas

  • electromagnetic wave weapon — radijo dažnio ginklas statusas T sritis apsauga nuo naikinimo priemonių apibrėžtis Masinio naikinimo ginklas, kurio veikimas pagrįstas ypač aukšto (300–30000 MHz) arba nepaprastai žemo (mažiau kaip 100 Hz) dažnio elektromagnetinės spinduliuotės… …   Apsaugos nuo naikinimo priemonių enciklopedinis žodynas

  • 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

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”