ῥύαξ[ῠ],ᾱκος,ὁ,(ῥέω)
A. rushing stream, mountain torrent, Th. 4.96 , Dsc. 3.51 , prob. in OGI 335.111 (Pergam.,ii B.C.).
2. esp.stream of lavafrom a volcano, ὁ ῥ. τοῦ πυρὸς ἐκ τῆς Αἴτνης
Th. 3.116
, cf. Pl. Phd. 111e , 113b , Arist. Mir. 833a17 , Thphr. Lap. 22 ;ὁ καλούμενος ῥ. D.S. 14.59 .
3. metaph., ῥ. ἀργύρου γενέσθαι
Id. 5.35
.
4. of dolphins, etc.,ἔχει οἷον ῥ. δύο ἐξ ὧν τὸ γάλα ῥεῖtwoflow-holes, Arist. HA 504b24 .