reradiate
/ˌriːˈreɪdɪeɪt/verb
1 [with object] To radiate again (something that has been absorbed or received).
2 [no object] To be emitted again as radiation; to radiate out again. rare before late 20th cent.
3 [no object] To emit radiation following the absorption of radiated energy.
Origin
Mid 19th century. From re- + radiate. Compare earlier reradiation and reradiating.