[ trih-fahyn, -feen ]
/ trɪˈfaɪn, -ˈfin /
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a small circular saw with a center pin mounted on a strong hollow metal shaft to which is attached a transverse handle: used in surgery to remove circular disks of bone from the skull.
verb (used with object), tre·phined, tre·phin·ing.
to operate upon with a trephine.
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Origin of trephine
1620–30; spelling variant of trefine, originally trafine, blend of trapan (variant of trepan1) and Latin phrase trēs fīnēs three ends (the inventor's explanation)
OTHER WORDS FROM trephinetreph·i·na·tion [tref-uh-ney-shuhn], /ˌtrɛf əˈneɪ ʃən/, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
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
British Dictionary definitions for trephine
/ (trɪˈfiːn) /
a surgical sawlike instrument for removing circular sections of bone, esp from the skull
(tr) to remove a circular section of bone from (esp the skull)
Also called: trepan
Derived forms of trephinetrephination (ˌtrɛfɪˈneɪʃən), noun
Word Origin for trephine
C17: from French tréphine, from obsolete English trefine trepan 1, allegedly from Latin trēs fīnēs literally: three ends; influenced also by English trepane trepan 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012