Saint Ignatius' itch

Noun

1.

Saint Ignatius' itch - 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, maidism, mal de la rosa, mal rosso, mayidism, pellagra

Alpine scurvy, avitaminosis, hypovitaminosis, maidism, mal de la rosa, mal rosso, mayidism, pellagra