nummular dermatitis(redirected from Discoid dermatitis)
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discrete, coin-shaped patches of eczema.
Synonym(s): nummular dermatitis
Etymology: L, nummuli, petty cash; Gk, derma, skin, itis, inflammation
a skin disease characterized by coin-shaped, vesicular, or scaling eczema-like lesions, commonly on the forearms and front of the calves. The cause is unknown.