1873, "situated on or affecting the dura mater," from epi- "on" + dura mater + -al (1). The noun meaning "injection into the epidural region" (usually given during childbirth) is attested by 1966.
权威例句
1. Some mothers choose to have an epidural when giving birth.
有的母亲分娩时选择硬膜外麻醉。
2. Objective To explore clinical effect of epidural anesthesia during labor.
目的探讨持续性硬膜外阻滞应用于分娩的镇痛效果及对母儿的影响.
3. Summary of Background Data . Asymptomatic epidural hematoma is common after lumbar surgery.
腰椎术后不典型硬膜外血肿很常见.
4. I pethidine and then the epidural , which was bliss.
那么我可以无痛分娩了, 这真是有福气的事.
5. The epidural space is usually identified via the lumbar approach.