present participle of trepan

The act of one who trepans.

plural of trepanning

The practice of drilling a hole in the skull as a physical, mental, or spiritual treatment.

A tool used to bore through rock when sinking shafts. / (medicine) A surgical instrument used to remove a circular section of bone from the skull; a trephine.

(transitive, manufacturing, mining) To create a large hole by making a narrow groove outlining the shape of the hole and then removing the plug of material remaining by less expensive means.

(archaic) A trickster. / (archaic) A snare; a trapan.

(archaic) To ensnare; to seduce, to trick.

plural of trepan

simple past tense and past participle of trepan