τρύπᾰν-ον [ῡ],τό, a carpenter's tool,
A. borer, auger,rotated by a thong (cf.τρυπάω), Od. 9.385 , cf. Pratin.Lyr. 1.14 , E. Cyc. 461 , Pl. Cra. 388a , Nicoch. 9 , AP 6.205 ( Leon. ); theboring-pointof a siegeengine, Aen.Tact. 32.5 .
II. a surgical instrument,trepan,
Hp. VC 18 ;τ. ὀξὺ καὶ εὐθύthe straight-pointedtrepan,
Gal. 19.129 ;τ. ἀβάπτιστον,another kind with a guard to prevent its piercing to the brain, Id. 10.447 .
III. fire-drill(v. πυρεῖον
1
), ἀχάλκευτα τρύπανα
S. Fr. 708
, cf. Thphr. HP 5.9.7 , Ign. 64 .
IV. τρύπανα,τά,metaph.,fellows who will do nothing without driving,Crates ap. Stob. 3.4.50 .
2. metaph. of Pan, sens. obsc., Call. Fr. 412 .