trephine

noun

tre·​phine ˈtrē-ˌfīn How to pronounce trephine (audio)
: a surgical instrument for cutting out circular sections (as of bone or corneal tissue)
trephine transitive verb

Examples of trephine in a Sentence

Recent Examples on the Web Surgical set Critical items would have included an amputation saw, tourniquet, trephines (for slicing into the skull), bone forceps, a large amputation knife, several smaller knives and suture needles. Will McCarthy, Smithsonian Magazine, 20 June 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'trephine.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

French tréphine, from obsolete English trefine, trafine, from Latin tres fines three ends, from tres three + fines, plural of finis end — more at three

First Known Use

1628, in the meaning defined above

Time Traveler
The first known use of trephine was in 1628

Dictionary Entries Near trephine

Cite this Entry

“Trephine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trephine. Accessed 5 Mar. 2024.

Medical Definition

trephine

1 of 2 noun
tre·​phine ˈtrē-ˌfīn How to pronounce trephine (audio)
: a surgical instrument for cutting out circular sections (as of bone or corneal tissue)

trephine

2 of 2 transitive verb
tre·​phine ˈtrē-ˌfīn How to pronounce trephine (audio) tri-ˈ How to pronounce trephine (audio)
trephined; trephining
: to operate on with or extract by means of a trephine
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