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Definition of Photodermatitis
1. Noun. (medicine) dermatitis caused by or aggravated by exposure to light ¹
¹ Source: wiktionary.com
Medical Definition of Photodermatitis
1. Dermatitis caused or elicited by exposure to sunlight; may be phototoxic or photoallergic, and can result from topical application, ingestion, inhalation, or injection of mediating phototoxic or photoallergic material. See: photosensitization. Synonym: actinic dermatitis, actinodermatitis. Origin: photo-+ G. Derma, skin, + -itis, inflammation (05 Mar 2000)