trepan


1tre·pan

transitive verb \tri-ˈpan\
tre·pannedtre·pan·ning

Definition of TREPAN

1
:  to use a trephine on (the skull)
2
:  to remove a disk or cylindrical core (as from metal for testing)
trep·a·na·tion \ˌtre-pə-ˈnā-shən\ noun

Origin of TREPAN

Middle English, from trepane trephine
First Known Use: 15th century

Other Metals and Metallurgy Terms

assay, bloom, bullion, ductile, ingot, malleable, patina, plate, temper, tensile

2tre·pan

noun \ˈtrē-ˌpan, tri-ˈpan\

Definition of TREPAN

:  a heavy tool used in boring mine shafts

Origin of TREPAN

Middle English trepane trephine, Anglo-French trepan, from Medieval Latin trepanum, from Greek trypanon auger, from trypan to bore
First Known Use: circa 1877

Other Mining and Drilling Terms

ore, wildcat

3tre·pan

noun \tri-ˈpan\

Definition of TREPAN

1
archaic :  trickster
2
archaic :  a deceptive device :  snare

Origin of TREPAN

origin unknown
First Known Use: 1641

4tre·pan

transitive verb \tri-ˈpan\
tre·pannedtre·pan·ning

Definition of TREPAN

archaic
:  entrap, lure

First Known Use of TREPAN

circa 1656

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