Medical Dictionary
camptothecin
noun camp·to·the·cin \ˌkamp-tə-ˈthē-sən\
Medical Definition of CAMPTOTHECIN
: an alkaloid C20H16N2O4 from the wood of a Chinese tree (Camptotheca acuminata of the family Nyssaceae) that has shown some antileukemic and anticancer activity in animal studies; also : a semisynthetic or synthetic derivative of this
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