provitamin D2

provitamin D2

Medical dictionary. 2011.

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  • provitamin A — n a provitamin of vitamin A esp CAROTENE * * * usually β carotene; however, the term is sometimes used more broadly to denote any of the provitamin A carotenoids …   Medical dictionary

  • provitamin — [prō vīt′ə min] n. any ingested substance which can be converted to a vitamin within the organism …   English World dictionary

  • Provitamin — Provitamine sind Vorstufen der Vitamine und müssen erst noch in diese umgewandelt werden, um für den Körper von Nutzen zu sein.[1] Da der Körper immer nur so viel Provitamine in Vitamine umwandelt, wie benötigt werden, ist eine Provitamin… …   Deutsch Wikipedia

  • Provitamin A — Strukturen der Carotine α Carotin (CAS 7488 99 5, PubChem 4369188) β Carotin …   Deutsch Wikipedia

  • provitamin A — noun an orange isomer of an unsaturated hydrocarbon found in many plants; is converted into vitamin A in the liver • Syn: ↑carotene, ↑carotin • Hypernyms: ↑provitamin • Hyponyms: ↑beta carotene * * * noun …   Useful english dictionary

  • Provitamin — A provitamin is a substance that can be converted into a vitamin by animal tissues.Similar to a prodrug that is metabolized into a drug.List of provitaminsee also* Prodrug …   Wikipedia

  • Provitamin D3 — Strukturformel Allgemeines Name 7 Dehydrocholesterol Andere Namen (3S,10R,13R,17R) 10,13 Dimethyl 17 (6 met …   Deutsch Wikipedia

  • provitamin — A substance that can be converted into a vitamin; e.g., β carotene. p. A trivial name for carotenoids exhibiting qualitatively the biologic activity of β carotene, i.e., vitamin A precursors (α , β , and γ carotene and cryptoxanthin); contained… …   Medical dictionary

  • provitamin — provitaminas statusas T sritis chemija apibrėžtis Medžiaga, organizme virstanti vitaminu. atitikmenys: angl. provitamin rus. провитамин …   Chemijos terminų aiškinamasis žodynas

  • provitamin — noun vitamin precursor; a substance that is converted into a vitamin in animal tissues • Hypernyms: ↑hydrocarbon • Hyponyms: ↑provitamin A, ↑carotene, ↑carotin …   Useful english dictionary

  • provitamin — noun Date: 1927 a precursor of a vitamin convertible into the vitamin in an organism …   New Collegiate Dictionary

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