pellagra (n.)a disease caused by deficiency of niacin or tryptophan (or by a defect in the metabolic conversion of tryptophan to niacin); characterized by gastrointestinal disturbances and erythema and nervous or mental disorders; may be caused by malnutrition or alcoholism or other nutritional impairments;
Synonyms: Alpine scurvy / mal de la rosa / mal rosso / maidism / mayidism / Saint Ignatius' itch
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