• WordNet 3.6
    • v trephine operate on with a trephine
    • n trephine a surgical instrument used to remove sections of bone from the skull
    • ***
Webster's Revised Unabridged Dictionary
    • n Trephine (Surg) An instrument for trepanning, being an improvement on the trepan. It is a circular or cylindrical saw, with a handle like that of a gimlet, and a little sharp perforator called the center pin.
    • v. t Trephine To perforate with a trephine; to trepan.
    • ***
Century Dictionary and Cyclopedia
    • n trephine An improved form of the trepan, consisting of a cylindrical saw with a handle placed transversely, like that of a gimlet, and having a sharp steel point called the center-pin. This pin may be fixed and removed at pleasure, and stands in the center of the circle formed by the saw, projecting a little below its edge. The center-pin is fixed in the skull, and forms an axis round which the circular edge of the saw rotates, and as soon as the teeth of the saw have made a circular groove in which they can work steadily the center-pin is removed. The saw is made to cut through the bone, not by a series of complete rotations such as are made by the trepan, but by rapid halfrotations alternately to the right and left. The trephine is used especially in injuries of the head, and in cases, chiefly of abscess, resulting from injuries, in which the removal of the morbid material or of a new growth is necessary. The use of the trephine, which was gradually being abandoned, has of late years come into prominence again, in consequence of the discoveries made in cerebral localization.
    • trephine To operate upon with a trephine; trepan.
    • ***
Chambers's Twentieth Century Dictionary
    • n Trephine tre-fēn′ or tre-fīn′ the modern trepan, having a little sharp borer called the centre-pin
    • v.t Trephine to perforate with the trephine
    • ***


Webster's Revised Unabridged Dictionary
A dim. of 1st trepan,: cf. F. tréphine,


In literature:

The suffusion of the brain will increase quickly, so we must trephine at once or it may be too late.
"Dracula" by Bram Stoker
Lately I've been studying the history of trephining and the cases where it has been employed.
"Anne's House of Dreams" by Lucy Maud Montgomery
The boy was trephined, and the comminuted fragments removed; in about six weeks recovery was nearly complete.
"Anomalies and Curiosities of Medicine" by George M. Gould
Shepherds trephined sheep for the staggers.
"The Evolution of Modern Medicine" by William Osler
He must be trephined.
"A Simpleton" by Charles Reade
Suppose he had never been trephined, when would his consciousness have returned?
"Elsie Venner" by Oliver Wendell Holmes, Sr.
I have a man wounded in eight places, including a fractured elbow and a fractured skull, which has been trephined.
"Diary of a Nursing Sister on the Western Front, 1914-1915" by Anonymous
He should also have small scalpels, tooth trephines, and files.
"Old-Time Makers of Medicine" by James J. Walsh
V. Operations Other than Scleral Trephining for the Relief of Glaucoma.
"Glaucoma" by Various
Fractures of the cranium, and the operation of trephining anatomically considered.
"Surgical Anatomy" by Joseph Maclise

In news:

Trephine Saw , c 1863.