noun. an insufficiency of the B vitamin nicotinic acid, characterized by weakness, gastrointestinal disruptions, skin ailments, and neurological indicators. Commonly referred to as nicotinic acid deficiency.
Cite this page: N., Pam M.S., "PELLAGRA," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/pellagra/ (accessed August 13, 2020).
