pellagra: Meaning and Definition of

pel•la•gra

Pronunciation: (pu-lag'ru, -lā'gru, -lä'-), [key]
— n. Pathol.
  1. a disease caused by a deficiency of niacin in the diet, characterized by skin changes, severe nerve dysfunction, mental symptoms, and diarrhea.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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