Home/photochromicphotochromic/foh-tuh-kroh-mik/US // ˌfoʊ təˈkroʊ mɪk //UK // (ˌfəʊtəʊˈkrəʊmɪk) //光变色,光致变色,光变色的,光致变色剂Definitionsadj.形容词 adjective1: capable of darkening or changing color when exposed to light.Level 5Browse all words →