Xeroderma

n. dryness of the skin, skin disease causing dryness of the skin (Medicine, Dermatology)

Xeroderma (literally "dry skin")is a condition involving the integumentary system, which in most cases can safely be treated with emollients and/or moisturizers. Xeroderma occurs most commonly on the lower legs, arms, the sides of the abdomen and thighs. Symptoms most associated with Xeroderma are scaling (the visible peeling of the outer skin layer), itching and cracks in the skin.
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Xeroderma /xe·ro·der·ma/ a mild form of ichthyosis, marked by a dry, rough, discolored state of the skin. [more]Xeroderma - Community and Resources

Noun
1. a mild form of ichthyosis characterized by abnormal dryness and roughness of the skin
(synonym) xerodermia
(hypernym) ichthyosis
(hyponym) xeroderma pigmentosum

(n.)
Ichthyosis.
  

(n.)
A skin disease characterized by the presence of numerous small pigmented spots resembling freckles, with which are subsequently mingled spots of atrophied skin.