Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A photochemical reaction.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a photochemical reaction

Etymologies

Sorry, no etymologies found.

Examples

  • The photoreaction can mimic a sunburn or bring on an allergic reaction such as hives or a rash.

    Simple Skin Beauty

  • Berndt A, Kottke T, Breitkreuz H, Dvorsky R, Hennig S, et al. (2007) A novel photoreaction mechanism for the circadian blue light photoreceptor

    PLoS Biology: New Articles

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