provitamin

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provitamin

 [pro-vi´tah-min]
a substance, e.g., ergosterol, from which the animal organism can form a vitamin.

pro·vi·ta·min

(prō-vī'tă-min),
A substance that can be converted into a vitamin; for example, β-carotene.

provitamin

/pro·vi·ta·min/ (-vi´tah-min) a precursor of a vitamin.
provitamin A  usually β-carotene, sometimes including any of the provitamin A carotenoids.
provitamin D2  ergosterol.
provitamin D3  7-dehydrocholesterol.

provitamin

(prō-vī′tə-mĭn)
n.
A vitamin precursor that the body converts to its active form through normal metabolic processes. Carotene, for example, is a provitamin of vitamin A.

provitamin

[prōvī′təmin]
a precursor of a vitamin; a substance found in certain foods that in the body may be converted into a vitamin. Also called previtamin.

pro·vi·ta·min

(prō'vī'tă-min)
An inactive form of a vitamin that needs activation before it can be used by the body.

provitamin

A substance that is converted in the body to a VITAMIN.

pro·vi·ta·min

(prō'vī'tă-min)
An inactive form of a vitamin that needs activation before it can be used by the body.

provitamin

a substance, e.g. ergosterol, from which the animal organism can form a vitamin.

provitamin A
References in periodicals archive ?
00); lot3 - Medicines contents of vitamins, provitamins, derivatives and mixtures of these substances, therapeutic or prophylactic pryznachenosti, dosed or packaged for retail trade (21.
CPV: Pharmaceutical products 33600000-6, 33616000-1 Vitamins; Provitamins 33616100-2, 33631400-6Antybiotyki and chemotherapeutics for dermatological use; 33641100-6 Gynaecological srodkiprzeciwinfekcyjne and antiseptic; Painkillers 33661200-3, 33651520-9 Immunoglobulins, 33692700-4 glucose solutions