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1. (n.) trepan
a tool for cutting shallow holes by removing a core.
2. (v.t.) trepan
to cut circular disks from (plate stock) using a rotating cutter.
3. trepan
to operate on surgically with a trephine.
4. (n.) trepan
a trickster.
5. trepan
a snare.
6. (v.t.) trepan
to ensnare or entrap.
Etymology: (1635–45; earlier trapan=trap1+-an, of uncert. orig.)
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| Definition of 'trepan' |
Princeton's WordNet |
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1. (noun) trepan, trephine
a surgical instrument used to remove sections of bone from the skull
2. (verb) trepan
a drill for cutting circular holes around a center
3. (verb) trepan
cut a hole with a trepan, as in surgery
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| Definition of 'trepan' |
Webster Dictionary |
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1. (noun) trepan
a crown-saw or cylindrical saw for perforating the skull, turned, when used, like a bit or gimlet. See Trephine
2. (noun) trepan
a kind of broad chisel for sinking shafts
3. (noun) trepan
a snare; a trapan
4. (noun) trepan
a deceiver; a cheat
5. trepan
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
6. (verb) trepan
to insnare; to trap; to trapan
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Definitions of trepan 
