VDict - Definition of cosmic ray

English - English (Wordnet) dictionary (also found in English - Vietnamese)

cosmic ray

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Noun

highly penetrating ionizing radiation of extraterrestrial origin; consisting chiefly of protons and alpha particles; collision with atmospheric particles results in rays and particles of many kinds

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Words contain "cosmic ray" in its definition in English - English (Wordnet) dictionary:
cosmic victor hess victor franz hess robert woodrow wilson zodiacal light optical telescope astronomical telescope big bang nucleosynthesis wilhelm reich more...

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