photodermatitis
noun
pho·to·der·ma·ti·tis
| \ ˌfōt-ō-ˌdər-mə-ˈtīt-əs
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plural photodermatitises
or photodermatitides\ -ˈtit-ə-ˌdēz
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Medical Definition of photodermatitis
: any dermatitis caused or precipitated by exposure to light