antivitamin

antivitamin

[an-tee-vahy-tuh-min, an-tahy- or, British, -vit-uh-min]
noun Biochemistry.
any substance that interferes with the action of a vitamin.

Origin:
1925–30; anti- + vitamin

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Medical Dictionary

antivitamin an·ti·vi·ta·min (ān'tē-vī'tə-mĭn, ān'tī-)
n.
A substance that prevents a vitamin from exerting its typical metabolic effects.

The American Heritage® Stedman's Medical Dictionary
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