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gamma radiation

noun

  1. electromagnetic radiation emitted by atomic nuclei; the wavelength is generally in the range 1 × 10 –10to 2 × 10 –13metres
  2. electromagnetic radiation of very short wavelength emitted by any source, esp the portion of the electromagnetic spectrum with a wavelength less than about 1 × 10 –11metres

gamma radiation

  1. The most energetic radiation in the electromagnetic spectrum ; it has the lowest wavelength and the highest frequency in the spectrum. Gamma rays are sent out by some radioactive nuclei . Unlike alpha radiation and beta radiation , gamma rays are not made up of particles, and they have no charge .

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Example Sentences

During the first few seconds, a nuclear blast sprayed gamma radiation and neutrons in all directions.

There is an increasingly heavy gamma radiation, but no more cosmic rays.

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