| NOUN | substance | provitamin | vitamin precursor |
|---|
| Meaning | vitamin precursor; a substance that is converted into a vitamin in animal tissues. | |
|---|---|---|
| Narrower | provitamin A, carotene, carotin | An orange isomer of an unsaturated hydrocarbon found in many plants |
| Broader | hydrocarbon | An organic compound containing only carbon and hydrogen |
| Spanish | provitamina | |
| Catalan | provitamina | |
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