| Meaning | Loss of sensation in a region of the body produced by application of an anesthetic agent to all the nerves supplying that region (as when an epidural anesthetic is administered to the pelvic region during childbirth). |
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| Synonym | regional anaesthesia |
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| Narrower | acroanesthesia, acroanaesthesia | Loss of sensation in the extremities |
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| caudal anesthesia, caudal anaesthesia, caudal block | regional anesthesia resulting from injection of an anesthetic into the caudal end of the spinal canal |
| epidural anesthesia, epidural anaesthesia, epidural | regional anesthesia resulting from injection of an anesthetic into the epidural space of the spinal cord |
| paracervical block | regional anesthesia resulting from the injection of a local anesthetic on each side of the cervix |
| pudendal block | regional anesthesia resulting from the use of a local anesthetic to deaden the pudendal nerves in the region of the vulva and labia majora |
| spinal anesthesia, spinal anaesthesia, spinal | anesthesia of the lower half of the body |
| Broader | anesthesia, anaesthesia | Loss of bodily sensation with or without loss of consciousness |
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