spinal anesthesia

n.
Partial or complete anesthesia produced by injecting an anesthetic into the spinal canal.

n

A state of insen-sitivity to pain in the lower part of the body produced by injection of an analgesic or anesthetic drug into the subarachnoid space of the spinal cord. See 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.

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The noun has one meaning:

Meaning #1: anesthesia of the lower half of the body; caused by injury to the spinal cord or by injecting an anesthetic beneath the arachnoid membrane that surrounds the spinal cord
  Synonyms: spinal anesthesia, spinal

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