pellagra(redirected from Saint Ignatius itch)
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pel·lag·ra(pə-lăg′rə, -lā′grə, -lä′-)
A disease caused by a deficiency of niacin and protein in the diet and characterized by skin eruptions, digestive and nervous system disturbances, and eventual mental deterioration.
[Italian : pelle, skin (from Latin pellis; see pel- in Indo-European roots) + -agra, a seizure (from Latin, from Greek -agrā, from agrā, a seizing; see ag- in Indo-European roots).]
(Pathology) pathol a disease caused by a dietary deficiency of nicotinic acid, characterized by burning or itching often followed by scaling of the skin, inflammation of the mouth, diarrhoea, mental impairment, etc
[C19: via Italian from pelle skin + -agra, from Greek agra paroxysm]
pel•la•gra(pəˈlæg rə, -ˈleɪ grə, -ˈlɑ-)
a disease caused by a deficiency of niacin in the diet, characterized by skin changes, severe nerve dysfunction, mental symptoms, and diarrhea.
[1805–15; < Italian < New Latin: skin disease = Latin pell(is) skin + Greek ágra seizure]
pel•la′grose, pel•la′grous, adj.
A disease caused by a lack of niacin in the diet. It causes skin and digestive disorders and mental deterioration.
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|Noun||1.||pellagra - 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|