Photoactive
[foh-toh-ak-tuh-vey-shuh n] /ˌfoʊ toʊˌæk təˈveɪ ʃən/
noun, Chemistry.
1.
the activation or control of a chemical, chemical reaction, or organism by light, as the activation of chlorophyll by sunlight during photosynthesis.
/ˌfəʊtəʊˈæktɪv/
adjective
1.
(of a substance) capable of responding to light or other electromagnetic radiation
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