pac·li·tax·el 
(păk′lĭ-tăksəl)
(păk′lĭ-tăksəl)n.
An anticancer drug that was first derived from the bark of the Pacific yew tree and is used in the treatment of ovarian and breast cancer that has not responded to prior therapy.
[PAC(IFIC YEW) + New Latin (brevifō)li(a), specific epithet of the Pacific yew (Latin brevis, short + Latin fōlium, leaf; see FOLIUM) + alteration of TAXOL.]