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.

QUIZ

QUIZ YOURSELF ON “ITS” VS. “IT’S”!

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Question 1 of 8

On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Origin of photoactivation

pho·to·ac·tive, adjectivepho·to·ac·tiv·i·ty, noun