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pellagra

noun
🔊/pəˈlæɡrə/
🔊/pəˈlɑːɡrə/
 [uncountable]
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  1. a disease caused by a lack of good food, that causes the skin to crack (= break ) and may lead to mental illness糙皮病，玉米红斑病（因缺乏营养而引起的皮肤皲裂，可导致精神障碍）Topics Illnessc2
    Word Originearly 19th cent.: from Italian, from pelle ‘skin’, on the pattern of podagra.