from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. of, relating to, or produced by photochemistry or by photochemical reactions

from the GNU version of the Collaborative International Dictionary of English

  • adj. Of or pertaining to chemical action of light, or produced by it.

from The Century Dictionary and Cyclopedia

  • Of or pertaining to the chemical action of light.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. of or relating to or produced by the effects of light on chemical systems


Sorry, no etymologies found.


  • Indicative of the importance of different chemicals interacting to cause smog, is the term photochemical smog.


  • Because this type of smog forms when chemical reactions take place in the presence of sunlight, it is termed photochemical smog.

    QCOnline Metro News

  • Puralytics, winner of this year's CleanTech Open, uses photochemical processes work to break down or remove contaminants from water.

    Andrew Winston: Innovation in Managing Water

  • On Earth, methane produced by bogs or cows can remain for a decade; on Mars, for reasons that are not fully understood but imply a photochemical destruction process unlike anything now known, the gas is destroyed in under a year.

    First Contact

  • Ozonolysis and photolysis of alkene-terminated self-assembled monolayers on quartz nanoparticles: implications for photochemical aging of organic aerosol particles, J. Park, A.L. Gomez, M.L. Walser, A. Lin, and S.A. Nizkorodov, Phys.

    Contributor: Maggie L. Walser

  • Mixed with pollution from the growing number of heavy industries in northern China, the particles create photochemical smogs in Korea, Japan, and toxic winds that blow across the Pacific to the west coast of the United States, adding the problem of “global dimming” to that of global warming.5

    When a Billion Chinese Jump

  • Ozone is an important tracer of photochemical processes in the atmosphere of Mars.

    Ozone on Mars: Two Windows Better Than One | Universe Today

  • The team also performed measurements of the ozone abundance over the Syrtis Major region, which will help to constrain photochemical models in this region.

    Ozone on Mars: Two Windows Better Than One | Universe Today

  • Putting the compatibility of the data from these two instruments on a firm base will support combining the ground-based infrared measurements with the SPICAM ultraviolet measurements in testing the photochemical models of the Martian atmosphere.

    Ozone on Mars: Two Windows Better Than One | Universe Today

  • To test predictions by current models of photochemical processes and general atmospheric circulation patterns, observations of spatial and temporal ozone variations are required.

    Ozone on Mars: Two Windows Better Than One | Universe Today


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