Oxford Dictionary English cosmic rays nounnoun BrE BrE//ˌkɒzmɪk ˈreɪz// ; NAmE NAmE//ˌkɑːzmɪk ˈreɪz// [plural] The Earth and the atmosphere Add to my wordlistjump to other resultsrays that reach the earth from outer space See related entries: The Earth and the atmosphereSee cosmic rays in the Oxford Advanced American DictionaryCheck pronunciation: cosmic rays oxfordlearnersdictionaries.com
