UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/trɪˈfiːn/US:USA pronunciation: respellingUSA pronunciation: respelling(tri fīn, -fēn)

Inflections of 'trephine' (v): (⇒ conjugate)
v 3rd person singular
v pres pverb, present participle: -ing verb used descriptively or to form progressive verb--for example, "a singing bird," "It is singing."
v pastverb, past simple: Past tense--for example, "He saw the man." "She laughed."
v past pverb, past participle: Verb form used descriptively or to form verbs--for example, "the locked door," "The door has been locked."

WordReference Random House Unabridged Dictionary of American English © 2020
tre•phine  (tri fīn, -fēn),USA pronunciation n., v.,  -phined, -phin•ing. [Surg.]
  1. a small circular saw with a center pin mounted on a strong hollow metal shaft to which is attached a transverse handle: used in surgery to remove circular disks of bone from the skull.

  1. to operate upon with a trephine.
treph•i•na•tion (tri fīn, -fēn),USA pronunciation , n. 
  • 1620–30; spelling, spelled variant of trefine, origin, originally trafine, blend of, blended trapan (variant of trepan1) and Latin phrase trēs fīnēs three ends (the inventor's explanation)

Collins Concise English Dictionary © HarperCollins Publishers::
trephine /trɪˈfiːn/ n
  1. a surgical sawlike instrument for removing circular sections of bone, esp from the skull
  1. (transitive) to remove a circular section of bone from (esp the skull)

Also called: trepan Etymology: 17th Century: from French tréphine, from obsolete English trefine trepan1, allegedly from Latin trēs fīnēs literally: three ends; influenced also by English trepane trepan1

trephination /ˌtrɛfɪˈneɪʃən/ n
'trephine' also found in these entries:

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