n.
A disease caused by a deficiency of niacin and protein in the diet and characterized by skin eruptions, digestive and nervous system disturbances, and eventual mental deterioration.
[Italian : pelle, skin (from Latin pellis) + -agra, a seizure (from Latin , from Greek -agrā , from agrā, a seizing).]
pellagrous pel·lag'rous adj.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
