Trepanned

noun
1.
a tool for cutting shallow holes by removing a core.
2.
Surgery. an obsolete form of the trephine resembling a carpenter’s bit and brace.
verb (used with object), trepanned, trepanning.
3.
Machinery. to cut circular disks from (plate stock) using a rotating cutter.
4.
Surgery. to operate upon with a trepan; trephine.
noun
1.
a person who ensnares or entraps others.
2.
a stratagem; a trap.
verb (used with object), trepanned, trepanning.
3.
to ensnare or entrap.
4.
to entice.
5.
to cheat or swindle.
noun
1.
(surgery) an instrument resembling a carpenter’s brace and bit formerly used to remove circular sections of bone (esp from the skull) Compare trephine
2.
a tool for cutting out circular blanks or for making grooves around a fixed centre
3.

the operation of cutting a hole with such a tool
the hole so produced

verb (transitive) -pans, -panning, -panned
4.
to cut (a hole or groove) with a trepan
5.
(surgery) another word for trephine
verb (transitive) -pans, -panning, -panned
1.
to entice, ensnare, or entrap
2.
to swindle or cheat
noun
3.
a person or thing that traps

trepan tre·pan (trĭ-pān’)
n.
A trephine. v. tre·panned, tre·pan·ning, tre·pans
To trephine.