Pellagra definition

pə-lăgrə, -lāgrə, -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.
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A chronic disease caused by a deficiency of nicotinic acid in the diet and characterized by gastrointestinal disturbances, skin eruptions, and mental disorders: it is endemic in some parts of the world.
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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.
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A disease caused by a lack of niacin in the diet, characterized by skin and digestive disorders and mental deterioration.
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(pathology) A disease, with skin lesions and mental confusion, primarily caused by a niacin deficiency.
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Other Word Forms

Noun

Singular:
pellagra
Plural:
pellagras

Origin of pellagra

  • Italian pelle skin (from Latin pellis pel-3 in Indo-European roots) -agra a seizure (from Latin) (from Greek -agrā) (from agrā a seizing ag- in Indo-European roots)

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Italian pelle (“skin") + agra (“sour")

    From Wiktionary