1. Avitaminosis The absence of a vitamin; may be used specifically, as, for example, Avitaminosis A, or generally, to mean a vitamin deficiency disease

2. Beriberi definition is - a deficiency disease marked by inflammatory or degenerative changes of the nerves, digestive system, and heart and caused by a lack of or inability to assimilate thiamine.

3. People take Chickweed for constipation, stomach and bowel problems, blood disorders, asthma and other lung diseases, obesity, a vitamin C deficiency disease called scurvy, a skin condition called psoriasis, rabies, itching, and muscle and joint pain.

4. Definition of Beriberi : a deficiency disease marked by inflammatory or degenerative changes of the nerves, digestive system, and heart and caused by a lack of or inability to assimilate thiamine Examples of Beriberi in a Sentence Recent Examples on the Web Like scurvy, Beriberi can be found in people who lack fresh food.