1. photochemical - Noun
2. photochemical - Adjective
Of or pertaining to chemical action of light, or produced by it; as, the photochemical changes of the visual purple of the retina.
Source: Webster's dictionaryAt a 10% ethanol by volume, the rise in vapor pressure may potentially increase the problem of photochemical smog. Source: Internet
During the spring, however, the sun comes out, providing energy to drive photochemical reactions and melt the polar stratospheric clouds, releasing considerable ClO, which drives the hole mechanism. Source: Internet
Photographic film is a photochemical data storage medium A floppy disk is a magnetic data storage medium A 3.5" PATA hard drive is both storage equipment and a storage medium. Source: Internet
ISBN 0-486-25128-4 Wilhelm Homberg described how light darkened some chemicals (photochemical effect) in 1694. Source: Internet
The brown coloration is due to the NO x in the photochemical smog. Source: Internet
This photochemical cycle is modulated by Saturn's annual seasonal cycle. Source: Internet