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photoactivation

[foh-toh-ak-tuh-vey-shuh n]
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.
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Origin of photoactivation

1920–25; photo- + activation
Related formspho·to·ac·tive, adjectivepho·to·ac·tiv·i·ty, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018