photoreaction

[ foh-toh-ree-ak-shuh n ]
/ ˌfoʊ toʊ riˈæk ʃən /

noun Chemistry.

a chemical reaction that involves or requires light.

Origin of photoreaction

First recorded in 1905–10; photo- + reaction

Words nearby photoreaction

photopsin, photopsy, photoptarmosis, photoradiation, photoradiation therapy, photoreaction, photoreactivation, photorealism, photoreception, photoreceptor, photoreceptor cell

Medical definitions for photoreaction

photoreaction
[ fō′tō-rē-ăk′shən ]

n.

A photochemical reaction.