Photochemical
/ˌfəʊtəʊˈkemɪkl/adjective
Related to or caused by the action of light on something, especially in a chemical reaction.
Plants use a photochemical process called photosynthesis to make food.
Often appears as...
- photochemical smog
- photochemical reactions
Usage tips
Technical
Definition 1 of 2
Pro Tip 1/3Light Interaction
Focuses on how light causes chemical changes, often seen in plants.
The photochemical effect of the sun helps plants grow.
Pro Tip 2/3Not Always Visible
Some photochemical reactions are invisible but still important, like in ozone layer.
Ozone forms through a photochemical reaction high in the Earth's atmosphere.
Pro Tip 3/3Environmental Impact
Photochemical processes can influence environmental conditions, like smog.
Photochemical smog is a major air pollution problem in big cities.
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