pho·​to·​de·​com·​po·​si·​tion ˌfō-tō-ˌdē-ˌkäm-pə-ˈzi-shən How to pronounce photodecomposition (audio)

Word History

First Known Use

1889, in the meaning defined above

Time Traveler
The first known use of photodecomposition was in 1889

Dictionary Entries Near photodecomposition

Cite this Entry

“Photodecomposition.” Dictionary, Merriam-Webster, Accessed 21 Jul. 2024.

Medical Definition


pho·​to·​de·​com·​po·​si·​tion -ˌdē-ˌkäm-pə-ˈzish-ən How to pronounce photodecomposition (audio)
: chemical breaking down (as of a pesticide) by means of radiant energy
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!