trephine (redirected from trephinations)

tre·phine  (tr-fn)

n.

A surgical instrument having circular, sawlike edges, used to cut out disks of bone, usually from the skull.

tr.v. tre·phined, tre·phin·ing, tre·phines

To operate on with a trephine.

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[French tréphine, from obsolete English trefine, from Latin trs fns, three ends : trs, three; see trei- in Indo-European roots + fns, pl. of fnis, end.]

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trephi·nation (trf-nshn) n.

Thesaurus

Noun	1.	trephine - a surgical instrument used to remove sections of bone from the skull trepan surgical instrument - a medical instrument used in surgery
Verb	1.	trephine - operate on with a trephine operate on, operate - perform surgery on; "The doctors operated on the patient but failed to save his life"