TREPAN
trepan
Noun
- A tool used to bore through rock when sinking shafts.
- A surgical instrument used to remove a circular section of bone from the skull; a trephine.
Noun (etymology 2)
Verb
- 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.
- To use a trepan; to trephine.
Verb (etymology 2)
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