trepan.
A tool used to bore through rock when sinking shafts.
Meaning & usage
A tool used to bore through rock when sinking shafts.
A surgical instrument used to remove a circular section of bone from the skull; a trephine.
Where this word comes from
Borrowed into Middle English from Old French trepan, from Latin trepanum, from Ancient Greek τρύπανον (trúpanon, “auger, borer”). Doublet of trephine.
To create a large hole by making a narrow groove outlining the shape of the hole and then removing the plug of material remaining by less expensive means.
To use a trepan; to trephine.
Where this word comes from
Borrowed into Middle English from Old French trepan, from Latin trepanum, from Ancient Greek τρύπανον (trúpanon, “auger, borer”). Doublet of trephine.
Alternative spelling of trapan (“act of entrapping or tricking; thing which entraps or tricks; (archaic or obsolete) person (or occasionally an animal) that traps or tricks another into doing something that benefits them but harms the victim”)
Where this word comes from
See trapan.
Alternative spelling of trapan (“to catch or entrap (a person or animal) in a snare or trap; (figurative) to trap or trick (someone), especially by using some stratagem, into doing something that benefits the perpetrator but harms the victim”)
Where this word comes from
See trapan.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.