συριγγοτόμον

τό
A. a knife for cutting fistulae, Heliod. ap. Orib. 44.23.57, Gal. 10.415, Paul.Aeg. 6.72; syringotomium in Veget.Mul. 2.27.2.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project