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“cosmic radiation”
Radiation by cosmic rays, consisting chiefly of protons, with some electrons and atomic nuclei: Cosmic radiations involves their collision or reaction with particles in the atmosphere which includes a wide variety of secondary radiations known as a cosmic ray showers.
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-ation, -ization (-iz[e] + -ation); -isation (British spelling variation)
(page 22)
cosmo-, cosm-, cosmico-, cosm, -cosmia, -cosmos, -cosmic, -cosmics, -cosmical, -cosmology, -cosms
(page 2)
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“cosmic radiation”
Cosmic rays collectively: Streams of high-energy particles from outer space, consist of protons, alpha particles, and light nuclei, which collide with atomic nuclei in the Earth's atmosphere, and produce secondary nuclear particles.
Primarily mesons (elementary particles are responsible for the forces in the atomic nucleus), such as pions and muons (types of subatomic particles), that shower the Earth.
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Astronomy and related astronomical terms
(page 7)