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Pronunciation: dem'o-deks

Definition: A genus of minute (0.1–0.4 mm) follicular mites (family Demodicidae) that inhabit the skin and are usually found in the sebaceous glands and hair follicles of mammals, including humans. Some cases of blepharitis in humans have been attributed to Demodex infection; use of facial creams promotes Demodex infection in older women, resulting in facial erythema with follicular scaling.

[G. demos, tallow, + dex, a woodworm]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.