单词	factor IX
释义	factor IX noun -ˈnīn  : a clotting factor that activates factor VIII and whose deficiency is associated with hemophilia called also Christmas factor Word History First Known Use 1955, in the meaning defined above Medical Definition factor IX noun -ˈnīn  : a clotting factor that activates factor VIII and whose absence is associated with hemophilia B called also autoprothrombin II, Christmas factor
随便看	proproctor proproctors props props (up) props up propter de propter defectum san propter defectum sanguinis propter delictum propter delictum te propter delictum tenentis propter ho propter hoc propter honoris respectum propterygia propterygial propterygium proptoses proptosis propugnation propugnator propulsion propulsions propulsive propulsive coefficient

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