A.gate-keeper, warder, porter, A.Th.621; π. πύργων, ναῶν, E.Tr.956, IT 1227 (troch.); “Ἅιδου κύων” Id.HF1277: as fem., “ἡ π. δωμάτων γυνή” Id.IT1153: in Prose, Aen.Tact.28.2, al., LXX Ne.7.1, al., Ph.2.216; of the guards of the Propylaea at Athens, IG22.2297: metaph., τοῖον πυλωρὸν φύλακα . . τροφῆς such a watchful guardian of thy life, S.Aj. 562; κακοὺς π. ὑμᾶς, ὦ Κορίνθιοι, ἡ Πελοπόννησος ἔχει Prov. ap. Plu.2.221f.
II. Medic., pylorus or lower orifice of the stomach, “οἷον π. τις” Gal.UP4.7, cf. Nat.Fac.3.4, Cels.4.1.7, Ruf.Onom.169, Id. ap. Orib.7.26.34.