pro·vi·ta·min 
(prō-vītə-mĭn)
(prō-vītə-mĭn)n.
A vitamin precursor that the body converts to its active form through normal metabolic processes. Carotene, for example, is a provitamin of vitamin A.
| 单词 | provitamin |
| 释义 | pro·vi·ta·min (prō-vītə-mĭn)n. A vitamin precursor that the body converts to its active form through normal metabolic processes. Carotene, for example, is a provitamin of vitamin A. |
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