light reaction

noun

: the phase of photosynthesis that requires the presence of light and that involves photophosphorylation

Examples of light reaction in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Visitors have the chance to kayak, and are also encouraged to swim and splash around in the water in order to trigger the light reactions. Sunset, 22 Jan. 2018

Word History

First Known Use

1925, in the meaning defined above

Time Traveler
The first known use of light reaction was in 1925

Dictionary Entries Near light reaction

Cite this Entry

“Light reaction.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/light%20reaction. Accessed 21 Nov. 2024.

Love words? Need even more definitions?

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