reradiate
verb
re·ra·di·ate (ˌ)rē-ˈrā-dē-ˌāt 
reradiated; reradiating; reradiates
transitive verb
: to radiate again or anew
especially : to emit (energy) in the form of radiation after absorbing incident radiation
reradiation
(ˌ)rē-ˌrā-dē-ˈā-shən
noun 
Example Sentences
Recent Examples on the Web Table salt forms cubic crystals because its atoms share electrons in that configuration; silver shines because its electrons absorb visible light and reradiate it back. 
Quanta Magazine, 28 Feb. 2018
Quanta Magazine, 28 Feb. 2018 Word History
First Known Use
1843, in the meaning defined above
Medical Definition
reradiate
transitive verb
re·ra·di·ate (ˈ)rē-ˈrād-ē-ˌāt
reradiated; reradiating
: to radiate again or anew
especially : to emit (energy) in the form of radiation after absorbing incident radiation