Saint Ignatius' itch

Từ điển Oxford Learners Wordfinder Dictionary

noun

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
• Syn:
pellagra, Alpine scurvy, mal de la rosa, mal rosso, maidism, mayidism
• Hypernyms:
avitaminosis, hypovitaminosis