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Showing results for antivitamin. Search instead for niacin vitamin.

antivitamin

American  
[an-tee-vahy-tuh-min, an-tahy-, -vit-uh-min] / ˌæn tiˈvaɪ tə mɪn, ˌæn taɪ-, -ˈvɪt ə mɪn /

noun

Biochemistry.
  1. any substance that interferes with the action of a vitamin.


Etymology

Origin of antivitamin

First recorded in 1925–30; anti- + vitamin

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