Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps


Noun: Saint Ignatius' itch
  1. 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
    - pellagra, Alpine scurvy, mal de la rosa, mal rosso, maidism, mayidism

Type of: avitaminosis, hypovitaminosis