Trepan in a sentence as a noun

Contagion was explained by miasma rather than germs, leeches and trepans were best practices, and even basic surgical sanitation was an uphill battle.

Trepan definitions

noun

a surgical instrument used to remove sections of bone from the skull

See also: trephine

noun

a drill for cutting circular holes around a center

verb

cut a hole with a trepan, as in surgery