Английский разговорный словарь (основной) - trepan
Trepan
trepan
trɪˈpæn n. & v. --n. 1 a cylindrical saw formerly used by surgeons for removing part of thebone of the skull. 2 a borer for sinking shafts. --v.tr. (trepanned, trepanning) perforate (the skull) with a trepan. øøtrepanation n. trepanning n. [ME f. med.L trepanum f. Gk trupanon f. trupao bore f. trupe hole]