Abaptiston definitions

abaptiston

(a″bap-tis´tәn) a saw used to remove a circular area of the skull, constructed so as to avoid slippage with damage to the brain.
Found on http://www.encyclo.co.uk/local/21001

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abaptiston

a cone-shaped trephine designed to avoid penetration of the brain when incising the skull.
Found on https://www.infoplease.com/dictionary/abaptiston

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