May be caused by malnutrition or alcoholism or other nutritional impairments

• Characterized by gastrointestinal disturbances and erythema and nervous or mental disorders
• Vegetable eating wholly brought about King George's disease
• Itching to see Indian city with unlimited enchantments
• Disease caused by niacin and protein deficiency
• Disease from fermented grape in which everyone's thrown up

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Pellagra \Pel"la*gra\ (p[e^]l"l[.a]*gr[.a]), n. [It. pelle skin + agro rough.] (Med.) An affection of the skin, characterized by redness, especially in exposed areas, scaling and shedding of the skin, and accompanied with severe gastrointestinal disturbance ...

WordNet Word definitions in WordNet
n. 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 ...

Wikipedia Word definitions in Wikipedia
Pellagra is a vitamin deficiency disease most frequently caused by a chronic lack of niacin (vitamin B or synonym: vitamin PP (from: Pellagra Preventing factor)) in the diet. It can be caused by decreased intake of niacin or tryptophan , and possibly by ...

Wiktionary Word definitions in Wiktionary
n. (context pathology English) A disease, with skin lesions and mental confusion, primarily caused by a niacin deficiency.

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
noun EXAMPLES FROM CORPUS ▪ Another form of mental disorder, pellagra , was associated clinically with diarrhoea and dermatitis. ▪ Colitis, which is histologically similar to ulcerative colitis, has also been described in association with pellagra . ▪ Eat ...