| 释义 |
pro·vi·ta·min AHD[prō-vīʹtə-mĭn] D.J.[prəʊˈvaɪtəmɪn]K.K.[proˈvaɪtəmɪn]n.（名词）- A vitamin precursor that the body converts to its active form through normal metabolic processes. Carotene, for example, is a provitamin of vitamin A.维生素原：一种由身体通过正常新陈代谢过程，将其转化成活跃形式的维生素的前体，比如，胡萝卜素是维生素A的维生素原
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