n. & v.
n. an improved form of trepan with a guiding centre-pin.
v.tr. operate on with this. trephination n.
[ orig. trafine, f. L tres fines three ends, app. formed after TREPAN ]
n. & v.
n. an improved form of trepan with a guiding centre-pin.
v.tr. operate on with this. trephination n.
[ orig. trafine, f. L tres fines three ends, app. formed after TREPAN ]
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012