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photoactivation
[ foh-toh-ak-tuh-vey-shuhn ]
noun
, Chemistry.
- the activation or control of a chemical, chemical reaction, or organism by light, as the activation of chlorophyll by sunlight during photosynthesis.
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Other Words From
- photo·active adjective
- photo·ac·tivi·ty noun
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Word History and Origins
Origin of photoactivation1
1920–25; photo- + activation ( def )
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