photoallergy

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photoallergy

 [fo″to-al´er-je]
a delayed immunologic type of photosensitivity involving both a chemical substance to which the individual has become previously sensitized and radiant energy.

pho·to·sen·si·ti·za·tion

(fō'tō-sen-si-ti-zā'shŭn),
1. Sensitization of the skin to light, usually due to the action of certain drugs, plants, or other substances; may occur shortly after administration of the drug (phototoxic sensitivity), or may occur only after a latent period of from days to months (photoallergic sensitivity, or photoallergy).

photoallergy

/pho·to·al·ler·gy/ (-al´er-je) a delayed immunologic type of photosensitivity involving a chemical substance to which the individual has previously become sensitized, combined with radiant energy.photoaller´gic

photoallergy

[-al′ərjē]
Etymology: Gk, phos, light, allos, other + ergein, to work
a sensitivity to light that causes allergic reactions.

photoallergy

a hypersensitivity that develops against the photoproduct of an exogenous chemical.