fotochimico significa in inglese

photochemical▼(relating to photochemistry)
adjective
[UK: ˌfəʊ.təʊˈk.e.mɪk.l̩] [US: ˌfoʊto.ʊˈk.e.mɪk.l̩]The air was infected with photochemical smog. = L'aria era infettata dallo smog fotochimico.