provitamin(redirected from provitamin D2)
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A vitamin precursor that the body converts to its active form through normal metabolic processes. Carotene, for example, is a provitamin of vitamin A.
(Biochemistry) a substance, such as carotene, that is converted into a vitamin in animal tissues
pro•vi•ta•min(proʊˈvaɪ tə mɪn; Brit. also proʊˈvɪt ə mɪn)
a substance that an organism can transform into a vitamin, as carotene, which is converted to vitamin A in the liver.
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|Noun||1.||provitamin - vitamin precursor; a substance that is converted into a vitamin in animal tissues|
hydrocarbon - an organic compound containing only carbon and hydrogen