provitamin

English Thesaurus

1. vitamin precursor; a substance that is converted into a vitamin in animal tissues (noun.substance)

hypernym	:	hydrocarbon,
definition	:	an organic compound containing only carbon and hydrogen (noun.substance)

hyponym	:	carotene, carotin, provitamin a,
definition	:	an orange isomer of an unsaturated hydrocarbon found in many plants; is converted into vitamin A in the liver (noun.substance)