单词 | pellagra |
释义 | pellagra/pɛˈlaɡrə![]() noun [mass noun] A deficiency disease caused by a lack of nicotinic acid or its precursor tryptophan in the diet. It is characterized by dermatitis, diarrhoea, and mental disturbance, and is often linked to over-dependence on maize as a staple food.Those highly dependent on corn as a food might develop pellagra and this chronic disease, causing dermatitis, diarrhea, and ultimately dementia, battered the population of European corn growing regions during the nineteenth century....
Derivativespellagrous![]() ![]()
OriginEarly 19th century: from Italian, from pelle 'skin', on the pattern of podagra. Rhymes |
随便看 |
|
英语词典包含243303条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。