αὐλός
Etym. ἄημι "to blow"
1. "a flute" or rather "clarionet" (for it was played by a mouthpiece, γλωσσίς, Aeschin.), Il., etc.; αὐλοὶ ἀνδρήϊοι and γυναικήϊοι, Lat. tibiae dextrae and "sinistrae, bass and treble", Hdt.; sometimes one person played two αὐλοί at once, Theocr.; αὐλὸς Ἐνυαλίου, i. e. a trumpet, Anth.:— ὑπ᾽ αὐλοῦ to the sound of "the flute", Hdt.; so, πρὸς αὐλόν, ὑπὸ τὸν αὐλόν Xen.
2. "any tube or pipe", as "the socket" of a spear-head, "the groove" into which the tongue of a buckle fitted, Hom.; "the pipe" of bellows, Thuc.:— αὐλὸς παχύς, in Od., seems to mean "a jet of blood through the tube" of the nostril.