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Pronunciation: ze'ro-der'ma

Definition: A mild form of ichthyosis characterized by excessive dryness of the skin due to slight thickening of the horny layer and diminished water content of the stratum corneum from decreased perspiration or exposure to wind, or low humidity; seen with aging, atopic dermatitis, vitamin A deficiency, etc.

[xero- + G. derma, skin]

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