Iron Age skull with hole produced by trepanation.
From New Latin trepanatio, formed from French trépan (“a drill”), itself from Latin trepanum, ultimately from Ancient Greek τρύπανον (trúpanon, “an auger, a drill”).
trepanation (countable and uncountable, plural trepanations)
- The practice of drilling a hole in the skull as a physical, mental, or spiritual treatment.
practice of drilling a hole in the skull