/ˈreɪdieɪt ||; ˈredɪˌet/verb1 [T] (used about people) to clearly show a particular quality or emotion in your appearance or behaviour （指人）流露，显示（某种特性或情绪）: She radiated self-confidence in the interview. 她在面试中显示出自信。
2 [T] to send out light or heat 发出（光或热）
3 [I] to go out in all directions from a central point 由中心向四面八方伸展；呈辐射状: Narrow streets radiate from the village square. 狭窄的街道从村里的广场向四面八方伸展开去。