Pellagra (noun)

A chronic disease caused by a deficiency of niacin (vitamin B3) or tryptophan, characterized by skin eruptions, digestive disturbances, and nervous symptoms.

Origin:

From italian pellagra, from spanish pelagra, from pelle "skin" + agra "rough".

Examples:

1. Pellagra is caused by a deficiency of niacin or tryptophan.
2. Pellagra was once common in parts of the world where corn is a staple food.
3. The patient was diagnosed with pellagra after presenting symptoms of skin eruptions and nervous system disturbances.
4. Pellagra is a serious disease that can be fatal if left untreated.
5. Eating a balanced diet can prevent pellagra, as it includes the necessary vitamins and minerals to support the body.