photoactivation
[ foh-toh-ak-tuh-vey-shuhn ]
/ ˌfoʊ toʊˌæk təˈveɪ ʃən /
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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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The rainy weather could not ________ my elated spirits on my graduation day.
Origin of photoactivation
1920–25; photo- + activation
OTHER WORDS FROM photoactivation
pho·to·ac·tive, adjectivepho·to·ac·tiv·i·ty, nounWords nearby photoactivation
photinia, photism, Photius, photo, photoactinic, photoactivation, photoactive, photo-ageing, photoaging, photoallergic, photoanalyst
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021