ὑδρορρόα

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, AB 312.

III. a hidden rock in the sea, acc. to (the error of) Sch.Ar. Ach. 1181.