pellagrecommon nounSyllable DecompositionpellagreEtymologyexpandborrowed from Italian pellagra.Definition1. A general and very serious disease of humans and animals, which first manifests itself through skin lesions followed by disorders of the central nervous system, which can be due to a vitamin PP (or B3) deficiency, a lack of lysine, etc., as in the case of diets based on non-nixtamalized corn.médecineexpandPluralpellagresTranslationsenglish:pellagraitalian:pellagraswedish:pellagraSee alsopellagreux (adj.)