tréphine

English Wikipedia has an article on: trephine Wikipedia Borrowed from French tréphine, from Latin trepanum, from Ancient Greek τρύπανον (trúpanon, “auger

trephining present participle and gerund of trephine trephining (plural trephinings) The use of a trephine. trepanation, trepanning, trephination

trephines plural of trephine trephines third-person singular simple present indicative of trephine nephrites, prehnites

trephiners plural of trephiner

From trephine +‎ -er. trephiner (plural trephiners) A trepanner.