xeroderma

/ˌzɪrəˈdɜrmə/
noun
  1. A medical condition in which the skin becomes abnormally dry, rough, and scaly.
    • Xeroderma is common in winter when the air is very dry.
    • Using moisturizer every day can help manage xeroderma.
    • The doctor diagnosed his dry, flaky skin as xeroderma.