Advertisement

Dictionary


pho•to•ac•ti•va•tion



Pronunciation: (fō"tō-ak"tu-vā'shun), [key]
n. Chem.
the activation or control of a chemical, chemical reaction, or organism by light, as the activation of chlorophyll by sunlight during photosynthesis.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

photoactinicphotoaging

Related Content


Advertisement

Play Hangman

Play Poptropica

Play Same Game

Try Our Math Flashcards