spinal anesthesia

noun Medicine/Medical.
interruption of conduction of nerve impulses by the injection of an anesthetic into the spinal canal that reduces sensitivity to pain without loss of consciousness.
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Medical Dictionary

spinal anesthesia n.

  1. Anesthesia produced by injection of a local anesthetic solution into the spinal subarachnoid space.

  2. Loss of sensation produced by disease of the spinal cord.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
For older or sicker patients, epidural or spinal anesthesia may be used.
Spinal anesthesia, which will make the lower half of your body feel numb.
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