• WordNet 3.6
    • v trepan cut a hole with a trepan, as in surgery
    • n trepan a drill for cutting circular holes around a center
    • n trepan a surgical instrument used to remove sections of bone from the skull
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Webster's Revised Unabridged Dictionary
    • Trepan (Surg) A crown-saw or cylindrical saw for perforating the skull, turned, when used, like a bit or gimlet. See Trephine.
    • Trepan a deceiver; a cheat. "He had been from the beginning a spy and a trepan ."
    • Trepan (Mining) A kind of broad chisel for sinking shafts.
    • Trepan A snare; a trapan. "Snares and trepans that common life lays in its way."
    • v. t Trepan To insnare; to trap; to trapan. "Guards even of a dozen men were silently trepanned from their stations."
    • v. t. & i Trepan (Surg) To perforate (the skull) with a trepan, so as to remove a portion of the bone, and thus relieve the brain from pressure or irritation; to perform an operation with the trepan.
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Century Dictionary and Cyclopedia
    • n trepan An instrument for boring; a borer. Specifically— An engine formerly used in sieges for piercing or making holes in the walls.
    • n trepan The name given by the French to a boring-tool used for sinking wells and mining shafts to great depths and sometimes of great dimensions.
    • n trepan An instrument, in the form of a crown-saw, used by surgeons for removing parts of the bones of the skull, in order to relieve the brain from pressure or irritation. The trephine is an improved form of this instrument. See cuts under crown-saw and trephine.
    • trepan To perforate by a trepan, especially by the surgical trepan; operate on with a trepan.
    • trepan See trapan.
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Chambers's Twentieth Century Dictionary
    • v.t Trepan trē-pan′ to ensnare
    • pr.p Trepan trepan′ning: pa.t. and pa.p. trepanned′
    • n Trepan trē-pan′ (surg.) a small cylindrical saw used in perforating the skull: a powerful rock-boring tool
    • v.t Trepan to remove a circular piece of the skull with a trepan, in order to relieve the brain from pressure or irritation
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Webster's Revised Unabridged Dictionary
F. trépan,cf. Sp. trépano, It. trepano, trapano,), LL. trepanum, fr. Gr. a borer, auger, trepan, fr. to bore, a hole. Cf. Trephine


In literature:

You desire to know whether Lucy Ashton, of her own free will, desires to annual the engagement into which she has been trepanned.
"Bride of Lammermoor" by Sir Walter Scott
Trepanning was accomplished successfully.
"The Works of Edgar Allan Poe Volume 2 (of 5) of the Raven Edition" by Edgar Allan Poe
Though wild as ony Athol deer, She has trepanned me fairly, O!
"The Home Book of Verse, Vol. 2 (of 4)" by Various
Possessing yourselves of towns is not conquest, but convenience, and in which you will one day or other be trepanned.
"The Writings of Thomas Paine, Vol. I" by Thomas Paine
Prince Rupert very ill, and to be trepanned on Saturday next.
"Diary of Samuel Pepys, 1667" by Samuel Pepys
It's trepanned he ought to be; and when there's an inquest on the body, I'll declare I said so.
"Lord Kilgobbin" by Charles Lever
Trepan, indeed; I'm nately trepanned myself.
"The House by the Church-Yard" by J. Sheridan Le Fanu
How very active in his own trepan!
"The Human Side of Animals" by Royal Dixon
Then there was a case of trepanning.
"Hildegarde's Holiday" by Laura E. Richards
They trepanned him when he came.
"The Backwash of War" by Ellen N. La Motte

In poetry:

How you jump -
Trepanned veteran,
Dirty girl,
Thumb stump.
"Cut" by Sylvia Plath
Ladies, your hearts expos'd to man,
Perhaps may suffer by trepan.
Protect them with a watchful eye.
My tale is ended--so good bye.
"The Coachman's Fall" by William Hutton
FROM the fraudulent fiend, that still without end
Most mortals trepans and beguiles,
Who wou'd hook us all in, to do ev'ry sin —
God shield us, I pray, from his wiles!
"A Song Concerning The Devil And The Drunkard" by Rees Prichard
Take heed, my soul — of Satan's wiles beware:
He always aims all ages to trepan —
In all thy paths he'll lay a latent snare,
To catch thy careless feet, whene'er he can.
"Advice, To Guard Against The Temptations Of The Devil " by Rees Prichard

In news:

Inca skulls also reveal evidence of trepanation, a practice that involved removing a part of the skull .