a disease caused by deficiency of niacin or tryptophan (or by a defect in the metabolic conversion of tryptophan to niacin); characterized by gastrointestinal disturbances and erythema and nervous or mental disorders; may be caused by malnutrition or alcoholism or other nutritional impairments
例句
用作名词 (n.)
Chronic liver disease and pellagra patient also can produce folic acid to lack sometimes. 慢性肝病和糙皮病患者有时亦可发生叶酸缺乏。
Pellagra is caused by a severe deficiency of biologically available niacin in the diet. 饮食中严重缺乏有利人体的烟碱酸就造成糙皮病。
美
[pə'læɡrə]
