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provitamin A

DEFINITIONS OF: provitamin A

1

n an orange isomer of an unsaturated hydrocarbon found in many plants; is converted into vitamin A in the liver

Synonyms:
carotene, carotin
Types:
beta-carotene
an isomer of carotene that is found in dark green and dark yellow fruits and vegetables
Type of:
provitamin
vitamin precursor; a substance that is converted into a vitamin in animal tissues
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