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| pel·lag·ra [ pə lággrə, pə láygrə ] |
noun |
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| Definition: |
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dietary deficiency disease: a disease caused by a dietary deficiency of niacin and marked by dermatitis, diarrhea, and disorder of the central nervous system
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| [Early 19th century. < Italian pelle "skin" + agra "rough" or -agra "seizure"] |
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  pel·lag·rous adjective |
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