pellagra
definition
a nutritional deficiency disease caused by inadequate intake of niacin or tryptophan
example
In regions where corn is a dietary staple, cases of pellagra have been historically prevalent due to a lack of niacin-rich foods.
synonyms
niacin deficiencyvitamin B3 deficiency
word origin — From Spanish 'pellagra', derived from 'pelle agra' meaning 'rough skin'