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Spinal anaesthesia

(surgery) anaesthesia of the lower half of the body produced by injecting an anaesthetic beneath the arachnoid membrane surrounding the spinal cord See also epidural (sense 2)
(pathol) loss of sensation in some part of the body as the result of injury of the spinal cord


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    noun, Medicine/Medical. 1. 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. spinal anesthesia n. Anesthesia produced by injection of a local anesthetic solution into the spinal subarachnoid space. Loss of sensation produced by disease of the spinal cord.

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