saint ignatius' itch

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• March 2. 2016 from wordnet.princeton.edu

  Saint Ignatius' itch — noun — english

  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