Definitions

1. noun

A disease caused by a lack of vitamin B3 (niacin) in the diet, characterized by diarrhea, dermatitis, and dementia.

“The village was plagued by pellagra due to the lack of access to nutritious food.”

2. noun

A condition caused by a deficiency in niacin or tryptophan in the diet.

“The doctor diagnosed the patient with pellagra after reviewing their medical history.”