[trɪˈpan], (Noun)

Definitions:
- a trephine (hole saw) used by surgeons for perforating the skull

- a borer for sinking shafts


Phrases:

Origin:
late Middle English: the noun via medieval Latin from Greek trupanon, from trupan ‘to bore’, from trupē ‘hole’; the verb from Old French trepaner

[trɪˈpan], (Verb)

Definitions:
- perforate (a person's skull) with a trepan


Phrases:

Origin:
late Middle English: the noun via medieval Latin from Greek trupanon, from trupan ‘to bore’, from trupē ‘hole’; the verb from Old French trepaner