light reaction

noun

Definition of light reaction 

: 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

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, "This Rare Marine Phenomenon Is Making the Pacific Glow," 22 Jan. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'light reaction.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of light reaction

circa 1929, in the meaning defined above

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The first known use of light reaction was circa 1929

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