provitamin / proʊˈvaɪ tə mɪn; British also proʊˈvɪt ə mɪn /

📖毕业后词汇抗生素抗癌剂抗癌药抗过敏药

provitamin 的定义

n. 名词 noun

Biochemistry.

  1. a substance that an organism can transform into a vitamin, as carotene, which is converted to vitamin A in the liver.