Learn how to say Trepan correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word trepan:
1chiefly historical a trephine (hole saw) used by surgeons for perforating the skull.
2a borer for sinking shafts.
verb (trepans, trepanning, trepanned)
perforate (a person’s skull) with a trepan.
late Middle English: the noun via medieval Latin from Greek trupanon, from trupan ‘to bore’, from trupē ‘hole’; the verb from Old French trepaner