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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