音标：[,ekstrә'djuәrәl] ；

a. [解]硬(脑)膜外的

a on or outside the dura mater

词型变化：名词复数形式 : extradurals

extradural的用法和样例：

词汇搭配

extradural anesthesia硬膜外麻醉
extradural abscess硬膜外脓肿
extradural hemorrhage硬膜外出血
extradural hematoma硬膜外血肿

【近义词】

epidural〈解〉硬(脑)膜上的...

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anterior columns of medulla oblongata