provitamin


pro·vi·ta·min

noun \(ˌ)prō-ˈvī-tə-mən\

Definition of PROVITAMIN

:  a precursor of a vitamin convertible into the vitamin in an organism

First Known Use of PROVITAMIN

1927

pro·vi·ta·min

noun \(ˈ)prō-ˈvīt-ə-mən\   (Medical Dictionary)

Medical Definition of PROVITAMIN

: a precursor of a vitamin convertible into the vitamin in an organism <ergosterol is a provitamin of vitamin D>

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