trephine

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun a surgical instrument used to remove sections of bone from the skull
  2. verb operate on with a trephine

Etymology

Borrowed from French tréphine, from Latin trepanum, from Ancient Greek τρύπανον (trúpanon, “auger, borer”). Doublet of trepan.

In classic literature

Synonyms

trepan

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