Origin of trephine
OTHER WORDS FROM trephinetreph·i·na·tion [tref-uh-ney-shuhn], /ˌtrɛf əˈneɪ ʃən/, noun
How to use trephine in a sentence
Trephining directly over the area of the abscess (rarely necessary).
In former days trephining was a much more frequent operation than it is now, and apparently more successful.A Manual of the Operations of Surgery|Joseph Bell
Trephining is an operation which can be performed by any surgeon who is used to ophthalmic manipulations, and who has good sight.
This being the case one cannot truthfully say that trephining alone can take the place of the old Graefe iridectomy.
An abscess involving the turbinated bones is similar to the collection of pus in the sinuses and must be relieved by trephining.Special Report on Diseases of the Horse|United States Department of Agriculture