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Medical Definition of Demodectic acariasis
1. An infestation of the hair follicles and sebaceous glands with mites of the genus Demodex; they occur in humans and a number of domesticated animals; although asymptomatic in most species, these mites can cause severe and extensive dermatitis ("red mange") in dogs. Synonym: demodectic acariasis, follicular mange. (05 Mar 2000)