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Chemical decomposition induced by light or other radiant energy.

pho′to·lyt′ic (fō′tə-lĭt′ĭk) adj.
pho′to·lyt′i·cal·ly adv.


(Chemistry) chemical decomposition caused by light or other electromagnetic radiation. Compare radiolysis
photolytic adj


(foʊˈtɒl ə sɪs)

the chemical decomposition of materials under the influence of light.
pho•to•lyt•ic (ˌfoʊt lˈɪt ɪk) adj.


the breakdown of matter or materials under the influence of light. — photolytic, adj.
See also: Decaying
the breakdown of matter or materials under the influence of light. — photolytic, adj.
See also: Light


The decomposition or disassociation of a compound when exposed to light of a certain wavelength.
References in periodicals archive ?
Two preliminary photolysis tests were carried out under non-preheated, isothermal reaction conditions to confirm that the possible thermal and photolytic reactions are not appreciable.
Ozonation, solar photolysis, solar modified photo-Fenton, solar modified###Centrifuged wastewater
In addition, new products such as walkie-talkie products manufactured for Xian Feng Yu and photolysis air purifiers will provide strong momentum for revenue growth.
Thus, the chemical transformations at the boundary of the phase distribution are due to the complex influence of electrochemical oxidation--reduction; reactions of photolysis initiated, UV--irradiation; the flow of charged particles from the gas phase to the surface of the liquid medium [9, 10].
The first volume covers science of the environmental chamber, the role of water in organic aerosol multiphase chemistry: focus on partitioning and reactivity, a critical review of atmospheric chemistry of alkoxy radicals, the role of nitric acid surface photolysis on the tropospheric cycling of reactive nitrogen species, the atmospheric chemistry of halogenated organic compounds, atmospheric reaction rate constants and kinetic isotope effects computed using the HEAT protocol and semi-classical transition state theory, and recent advances in the chemistry of OH and HO2 radicals in the atmosphere; field and laboratory measurements.
Folate is sensitive to photolysis by exposure to UVR.
When human skin is exposed to sunlight, it is the solar ultraviolet B photons with energies between 290 and 315 nm that are responsible for causing the photolysis of 7-dehydrocholesterol.
The use of certain sunscreens, which can protect skin from ravages of sunlight, can also deposit peroxy and hydroxy radicals along with their photolysis fragments on skin.
41) The time needed to refill vesicles with glutamate can be measured in the calyx nerve terminal, first by reducing vesicular glutamate using a glutamate-free pipette solution and then abruptly increasing glutamate concentration using UV photolysis of caged MNI-glutamate (Fig.
During hydrolysis, photolysis, metabolism, microbial degradation and alkaline pH, thiodicarb pesticide was degraded rapidly into methomyl.