CHRONIC ACTINIC DERMATITIS
\kɹˈɒnɪk aktˈɪnɪk dˌɜːmɐtˈa͡ɪtɪs], \kɹˈɒnɪk aktˈɪnɪk dˌɜːmɐtˈaɪtɪs], \k_ɹ_ˈɒ_n_ɪ_k a_k_t_ˈɪ_n_ɪ_k d_ˌɜː_m_ɐ_t_ˈaɪ_t_ɪ_s]\
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Abnormal responses to sunlight or artificial light due to extreme reactivity of light-absorbing molecules in tissues. It refers almost exclusively to skin photosensitivity, including sunburn, reactions due to repeated prolonged exposure in the absence of photosensitizing factors, and reactions requiring photosensitizing factors such as photosensitizing agents and certain diseases. With restricted reference to skin tissue, it does not include photosensitivity of the eye to light, as in photophobia or photosensitive epilepsy.
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Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.