trephination

trephination definition - medical

treph·i·na·tion (trĕfˌə-nāˈshən)

noun
Removal of a circular piece of bone, especially of the skull, by a trephine. Also called trepanation.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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