TREPAN

trepan

(noun) a drill for cutting circular holes around a center

trepan, trephine

(noun) a surgical instrument used to remove sections of bone from the skull

trepan

(verb) cut a hole with a trepan, as in surgery

Source: WordNet® 3.1

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Etymology 1

Noun

trepan (plural trepans)

A tool used to bore through rock when sinking shafts.

(medicine) A surgical instrument used to remove a circular section of bone from the skull; a trephine.

Verb

trepan (third-person singular simple present trepans, present participle trepaning or trepanning, simple past and past participle trepaned or trepanned)

(transitive, manufacturing, mining) 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.

(medicine) To use a trepan; to trephine.

Etymology 2

Noun

trepan (plural trepans)

(archaic) A trickster.

(archaic) A snare; a trapan.

Verb

trepan (third-person singular simple present trepans, present participle trepanning, simple past and past participle trepanned)

(archaic) To ensnare; to seduce, to trick.

Anagrams

• -pteran, Parten, arpent, enrapt, entrap, panter, parent

Source: Wiktionary

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Tre*pan", n. Etym: [F. trépan (cf. Sp. trépano, It. trepano, trapano), LL. trepanum, fr. Gr. Trephine.]

1. (Surg.)

Definition: A crown-saw or cylindrical saw for perforating the skull, turned, when used, like a bit or gimlet. See Trephine.

2. (Mining)

Definition: A kind of broad chisel for sinking shafts.

Tre*pan", v. t. & i. [imp. & p. p. Trepanned; p. pr. & vb. n. Trepanning.] Etym: [Cf. F. trépaner. See Trepan a saw.] (Surg.)

Definition: 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.

Tre*pan", n. Etym: [See Trapan.]

1. A snare; a trapan. Snares and trepans that common life lays in its way. South.

2. a deceiver; a cheat. He had been from the beginning a spy and a trepan. Macaulay.

Tre*pan", v. t.

Definition: To insnare; to trap; to trapan. Guards even of a dozen men were silently trepanned from their stations. De Quincey.

Source: Webster’s Unabridged Dictionary 1913 Edition

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