proper nounPŏsīdēumPOSIDEVM☆ KeepMeaningA promontory of IoniaLewis & Short 1879ModernAs printed, 1879POSIDEUMLEWIS & SHORTPOSIDEUMPŏsīdēum, i, n. I. A promontory of Ionia, Plin. 5, 29, 31, § 112; Mel. 1, 7.—II. A promontory of Pallene, Liv. 44, 11.Read the whole entry