photo activity

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.

Origin:
1920–25; photo- + activation

photoactive, adjective
photoactivity, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To photo activity
Explore Dictionary.com
Previous Definition: photo active
Next Definition: photo aging
Words Near: photo activity
More from Thesaurus.com
Synonyms and Antonyms for photo activity
More from Reference.com
Search for articles containing photo activity
More from Dictionary.com Translator
Dictionary.com Word FAQs

Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature