regional anesthesia

Medical Dictionary

regional anesthesia n.
The use of a local anesthetic solution or solutions to produce circumscribed areas of loss of sensation.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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WordNet
regional anesthesia

noun
loss of sensation in a region of the body produced by application of an anesthetic agent to all the nerves supplying that region (as when an epidural anesthetic is administered to the pelvic region during childbirth) 
WordNet® 3.0, © 2006 by Princeton University.
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