radiationEnglish → SpanishOxford English–Spanishradiation /AmE ˌreɪdiˈeɪʃ(ə)n , BrE reɪdɪˈeɪʃ(ə)n / noun [uncountable]: 1 (Physics) radiación f; (before noun) ‹levels/leakage› de radiación2 (process of radiating) irradiación f