epidural

adjective

1. Anatomy. situated on or outside the dura mater.

noun

2. Pharmacology. epidural anesthesia.

adjective

1. Also: extradural upon or outside the dura mater

noun

2. Also called: epidural anaesthesia
   1. injection of anaesthetic into the space outside the dura mater enveloping the spinal cord
   2. anaesthesia induced by this method

adj.

1882, from epi- + dura (mater) (see dura mater). The noun meaning “injection into the epidural region” (usually during childbirth) is attested by 1970.

adj.

1. Located on or over the dura mater.

n.

1. An injection into the epidural space of the spine.

Adjective

1. Located on or over the dura mater.

Noun

1. An injection into the epidural space of the spine, as an epidural anesthetic.