xeroderma

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xeroderma

 [ze″ro-der´mah]
excessive dryness of the skin, a mild form of ichthyosis.
xeroderma pigmento´sum a rare and often fatal pigmentary and atrophic disease in which the skin and eyes are extremely sensitive to light. It begins in childhood and progresses to early development of excessive freckling, telangiectases, keratoses, papillomas, carcinoma, and melanoma. Ocular symptoms include photophobia, opacities, and tumors. It is inherited as an autosomal recessive trait involving a defect in the enzymes active in the repair of DNA damaged by ultraviolet irradiation. Subtypes of this disorder have been identified by the capacity for DNA repair. Total protection from sunlight prevents the development of lesions.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

xe·ro·der·ma

(zē'rō-der'mă),
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]
Farlex Partner Medical Dictionary © Farlex 2012

xeroderma

(zîr′ō-dûr′mə) also

xerodermia

(-mē-ə)
n.
Excessive or abnormal dryness of the skin, as in ichthyosis.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

xeroderma

Dry skin, see there.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

xe·ro·der·ma

, xerodermia (zēr'ō-dĕr'mă, -mē-ă)
A mild form of ichthyosis characterized by excessive dryness of the skin due to slight increase of the horny layer and diminished water content of the stratum corneum from decreased perspiration, wind, or low humidity; seen with aging, atopic dermatitis, and vitamin A deficiency.
[xero- + G. derma, skin]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

xeroderma

Dryness of the skin.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

xe·ro·der·ma

, xerodermia (zēr'ō-dĕr'mă, -mē-ă)
Mild form of ichthyosis characterized by excessive dryness of skin due to slight thickening of horny layer and diminished water content of stratum corneum due to decreased perspiration or exposure to wind, or low humidity; associated with aging, atopic dermatitis, and vitamin A deficiency.
[xero- + G. derma, skin]
Medical Dictionary for the Dental Professions © Farlex 2012