photonuclear
adjective
pho·to·nu·cle·ar ˌfō-tō-ˈnü-klē-ər 
-ˈnyü-,
nonstandard
-kyə-lər : relating to or caused by the incidence of radiant energy (such as gamma rays) on atomic nuclei
Word History
First Known Use
1941, in the meaning defined above
Medical Definition
photonuclear
adjective
pho·to·nu·cle·ar ˌfōt-ō-ˈn(y)ü-klē-ər
: relating to or caused by the incidence of radiant energy (as gamma rays) on atomic nuclei