trepanning

Meanings

1. 1
   noun

   the surgical act or process of boring or cutting an opening in the skull or another hard structure

   Archaeologists found evidence of ancient trepanning in the healed edge of the skull opening.

The verbal noun of trepan, from Middle French trepan and Medieval Latin trepanum, ultimately from Greek trypanon ("borer, drill"). The name refers to the instrument and then to the operation performed with it.

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