Saint Ignatius' itch

Thesaurus

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 impairmentsAlpine scurvy, maidism, mal de la rosa, mal rosso, mayidism, pellagraavitaminosis, hypovitaminosis - any of several diseases caused by deficiency of one or more vitamins