epidural

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epidural

 [ep″ĭ-du´ral]
situated upon or outside the dura mater.

ep·i·du·ral

(ep'i-dū'răl),
On (or outside) the dura mater. [Usage note: epidural and extradural are nearly synonymous, with the exception that epidural implies immediate proximity to the dura mater, and extradural may be unconnected with it.]
See also: extradural.
Synonym(s): peridural

epidural

(ĕp′ĭ-do͝or′əl, -dyo͝or′-)
adj.
Located on or over the dura mater.
n.
An injection into the epidural space of the spine.

epidural

adjective Referring to the space between the bone of vertebral column and the meninges of the brain or spinal cord noun An epidural injection administered in the epidural space of the vertebral column

ep·i·du·ral

(ep'i-dūr'ăl)
On (or outside) the dura mater.

epidural

External to the DURA MATER, the outer of the three MENINGES covering the brain and spinal cord.