Lewis & Short

Tĕrentus or -os, i, f., a place at the extremity of the Campus Martius, on the Tiber, where the Ludi Saeculares were held, Ov. F. 1, 501; Mart. 1, 70, 2, 4, 1, 8; 10, 63, 3; Fest pp. 350 and 351 Müll.
Hence, Tĕrentīnus, a, um, adj., of or belonging to Terentus, Terentine: ludi, i. e. the secular games, Varr. ap. Censor. de Die Nat. 17; Aus. Idyll. 11, 34: tribus, Cic. Planc. 17, 43; 22, 54; S. C. ap. Cic. Fam. 8, 8, 5; Liv. 10, 9, 14: nuces, Plin. 15, 10, 9, § 35 (al. Tarentinus).