radianceItalian → EnglishOxford Italian–Englishradiance /BrE ˈreɪdɪəns , AmE ˈreɪdiəns /, radiancy /ˈreɪdɪənsɪ/ noun 1 (brightness) radiosità f, splendore m; (softer) chiarore m 2 figurative (of beauty, smile) splendore m, radiosità f