I.full of or abounding in harbors, having many harbors: “mare,” Cic. de Or. 3, 19, 69: “flumen Trinium,” Plin. 3, 12, 17, § 106: “pars Numidiae portuosior,” Sall. J. 16, 5: “navigatio minime portuosa,” with no ports to run into, Cic. Fam. 6, 20, 1.—* Adv.: portŭōsē , with many harbors; only comp.: “portuosius illic alveus Nili,” with more harbors, Jul. Val. Rer. Gest. Alex. M. 1, 20 fin. Mai.
portŭōsus , a, um, adj. portus,