reradiate

/riˈreɪdiˌeɪt/
verb
  1. To emit energy (such as heat or light) that has been absorbed from another source.
    • Some materials reradiate infrared radiation after being heated.
    • The satellite's surface reradiates excess heat to keep it cool.
    • The pavement absorbs sunlight during the day and reradiates it as heat at night.
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