Definition of vincristine
: an alkaloid C46H56N4O10 from the rosy periwinkle used especially in the form of its sulfate to treat some human neoplastic diseases (such as acute leukemia)
Medical Definition of vincristine
: an alkaloid that is obtained from the rosy periwinkle and that is used especially in the form of its sulfate C46H56N4O10·H2SO4 to treat some human neoplastic diseases (as acute leukemia)—called also leurocristine; see oncovin
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Britannica.com: Encyclopedia article about vincristine
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