I.a gate of Rome near the Tiber; River-gate, at the entrance to the Campus Martius: Flumentana porta Romae appellata, quod Tiberis partem ea fluxisse affirmant, Paul. ex Fest. p. 89 Müll.; Varr. R. R. 3, 2, 6; Liv. 35, 9, 3; 35, 21, 5; Inscr. Fratr. Arv. p. 254 ed. Marin.; cf. Becker's Antiq. 1, p. 155 sq.—
Flūmentāna (porta ), f. flumen,