ὑδρορρόα
From LSJ
οἷς τὰ ὁρώμενα τὴν ἀρχὴν ἐνδίδωσι, καὶ οἷον ὑπήνεμα διὰ τῶν ὀφθαλμῶν τὰ πάθη ταῖς ψυχαῖς εἰστοξεύονται → who taketh his beginning and occasion from something which is seen, and then his passion, as though wind borne, shoots through the eyes and into the heart
English (LSJ)
ἡ, but in Att. also ὑδρορρόη acc. to Moer.p.381 P., and so Polyaen.1.37: (ῥοή):—
A water-course, whether on the ground, conduit, sluice, Ar.Ach.922,1186; or on the roof, gutter, spout, Id.V.126; ἀπὸ τῶν ὀφθαλμῶν ὑδρορρόαι δύο ῥέουσιν Eub.98.4. II = ὕδρωψ, AB312. III a hidden rock in the sea, acc. to (the error of) Sch.Ar.Ach.1181.