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Cosmic ray
noun
Word Frequency:
0.6
Definitions
1.
noun
An energetic particle originating outside our solar system.
2.
noun
Cosmic radiation: a stream of cosmic rays.
Synonyms
cosmic radiation
astroparticle
solar energetic particle
cosmic background radiation
cosmoparticle
cosmic dust
derma ray
delta ray
cosmic neutrino background
solar radiation
beam
cathode ray
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