Definition of electromagnetic radiation in English:

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electromagnetic radiation


[mass noun] Physics
A kind of radiation including visible light, radio waves, gamma rays, and X-rays, in which electric and magnetic fields vary simultaneously.
Example sentences
  • Gamma radiation is a form of electromagnetic radiation, just like radio waves and visible light, only much more energetic.
  • Gamma rays are electromagnetic radiation originating in the atomic nuclei, physically identical to x-rays.
  • Visible light is just a small part of a continuum of electromagnetic radiation that extends from radio waves to gamma rays.
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