A rock-boring tool used in mining for sinking shafts. (noun)
Medicine A trephine. (noun)
To bore (a shaft) with a trepan. (verb-transitive)
Medicine To trephine. (verb-transitive)
To trap; ensnare. (verb-transitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "trepan" in a sentence
"From the distracted and despairing man whom love and longing trepan from the lover under passion’s ban the prisoner of transport and distraction from this Kamar al-Zaman son of Shahriman to the peerless one of the fair Houris the pearl-union to the Lady Budur daughter of King Al Ghayur"
"The "bizarre bits" on display here include a bunch of medical specimens and instruments, such as the smallpox scab, various saws used for amputations and neurosurgery, and a trepan, a grotesque device used to perforate the skull, which was believed to aid in treating mental illness, epilepsy and migraines."
"Relatively humane compared to the older method of using a hammer that would trepan the animal."