| photochemical | <chemistry> Of or pertaining to chemical action of light, or produced by it; as, the photochemical changes of the visual purple of the retina. Origin: Photo- + chemical. Source: Websters Dictionary (01 Mar 1998) |
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| oxidants, photochemical | Compounds that accept electrons in an oxidation-reduction reaction. The reaction is induced by or accelerated by exposure to electromagnetic radiation in the spectrum of visible or ultraviolet light. (12 Dec 1998) |
| photochemical a. |
laser ablation of tissue in which light absorbed by the tissue dissociates molecular bonds.
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