IPA: /trɛˈfaɪn/
KK: /trɛˈfaɪn/
A tool used in surgery to remove circular pieces of bone, often from the skull.
The surgeon used a trephine to access the patient's brain.
To perform a surgical operation using a tool that removes a circular piece of bone or tissue.
The surgeon had to trephine the skull to relieve pressure on the brain.
Past: trephined
Past Participle: trephined
Trephine comes from the Greek word "trēpanon" (meaning a borer or drill) and the suffix "-ine" (indicating a relationship or pertaining to). The word refers to a surgical instrument used to bore or drill into the skull.
Imagine a tool that 'drills' ('trēpanon') into the skull, which helps you remember that a trephine is a surgical instrument for that purpose.