κύρτωσις
From LSJ
English (LSJ)
εως, ἡ,
A bulging, of blood-vessels, Sor. 2.8. 2 convexity of the sea's surface, Theo Sm.p.122 H. 3 being humpbacked, Gal.18(1).494, Vett.Val.109.35; τοῦ σώματος Ptol.Tetr.151 (pl.). II κύρτωσις· τὸ μέσον τῆς ῥάχεως, EM774.12.