1. photocycle - Noun
2. photocycle - Verb
photocycle (plural photocycles)
(biochemistry, physics) Any of several biochemical cycles, involving photoactive proteins, that take place in the retina when exposed to light
photocycle (third-person singular simple present photocycles, present participle photocycling, simple past and past participle photocycled)
(biochemistry) To undergo a photochemical cycle