a saw used to remove a circular area of the skull, constructed so as to avoid slippage with damage to the brain.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
abaptiston(ā″bap-tis′tŏn) [Gr. (trypanon) abaptiston, undipped (trepan)]
Trephine that cannot slip and injure the brain.
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