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English dictionary

cosmic ray

/'k/A/zm/I/k_r/eI/

Definitions, examples, synonyms and antonyms from WordNet 3.0.

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

noun.phenomenon

Source: WordNet 3.0

Nearby words

cosmic cosmic background radiation cosmic dust cosmic microwave background cosmic microwave background radiation cosmic radiation cosmic string cosmic time cosmically cosmid cosmocampus cosmocampus profundus

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