Rhĭon or Rhĭum, i, n.
I A strait between the Ionian Sea and the Corinthian Gulf , Liv. 27, 29; 28, 7; Mel. 2, 3. —
II A promontory of Achaia near this strait , now Kastro Morea , Plin. 4, 2, 3, § 6.—
III A town near the same strait , Liv. 27, 30 (al. Aegium).