From Longman Dictionary of Contemporary Englishpellagrapel‧lag‧ra /pəˈlæɡrə/ noun [uncountable] MIa disease that makes you feel tired and that causes problems with your skin and central nervous system, caused by a lack of a type of B vitamin
Examples from the Corpus
pellagra• 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 too much of it and you will end up with pellagra.Origin pellagra (1800-1900) Italian pelle “skin” 