irradiate
/ɪˈreɪdɪeɪt/verb
with obj.
1
- （常作be irradiated）expose to radiation用射线照射。
1.1
- expose (food) to gamma rays to kill micro-organisms用伽马射线处理（食物）以杀死微生物。
2
- illuminate (something) by or as if by shining light on it照耀, 照亮：
sunlight streamed down through stained glass, irradiating the faces of family and friends.
阳光穿过彩色玻璃照了进来, 使家人和朋友的脸容光焕发。
词源
late 16th cent. （in the sense 'emit rays, shine upon'）： from Latin irradiat- 'shone upon', from the verb 'irradiare', from in- 'upon' + radiare 'to shine' （from radius 'ray'）.