| 单词 | avitaminosis |
| 释义 | avitaminosis (once / 3939771 pages) n WORD FAMILY avitaminosis n any of several diseases caused by deficiency of one or more vitamins Syn|Hypo|Hyper hypovitaminosis beriberi avitaminosis caused by lack of thiamine (vitamin B1) Alpine scurvy, Saint Ignatius' itch, maidism, mal de la rosa, mal rosso, mayidism, pellagraa disease caused by deficiency of niacin or tryptophan (or by a defect in the metabolic conversion of tryptophan to niacin); characterized by gastrointestinal disturbances and erythema and nervous or mental disorders; may be caused by malnutrition or alcoholism or other nutritional impairments rachitis, ricketschildhood disease caused by deficiency of vitamin D and sunlight associated with impaired metabolism of calcium and phosphorus scorbutus, scurvya condition caused by deficiency of ascorbic acid (vitamin C) moon blindness, night blindness, nyctalopiainability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder kakke diseasethe endemic form of beriberi malnutrition a state of poor nutrition; can result from insufficient or excessive or unbalanced diet or from inability to absorb foods |
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