What does Rhĭon mean in Latin?

Rhĭon, a proper noun, means “A strait between the Ionian Sea and the Corinthian Gulf”.

proper noun

Rhĭon

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).

What does Rhĭon mean in Latin?: Rhĭon, a proper noun, means “A strait between the Ionian Sea and the Corinthian Gulf”.