Bactra, ōrum (Bactrum, i, Plin. 6, 16, 18, § 48), n., = Βάκτρα, the chief city of Bactria or Bactriana, now Balkh, Verg. G. 2, 138; Prop. 3 (4), 1, 16; 3, 11 (4, 10), 26; Hor. C. 3, 29, 28; Curt. 7, 4, 31; cf. Sil. 13, 764; Amm. 23, 6, 58.

—Transf., = Bactri, the Bactrians, Verg. A. 8, 688.

— Derivv. Bactri, ōrum, m., the inhabitants of Bactriana, Mel. 1, 2, 5; Varr. ap. Plin. 6, 17, 19, § 52; Plin. 6, 16, 18, § 48.

— Bac-tria, ae. f., the country of the Bactrians, Bactria, Plin. 8, 18, 26, § 67.

— Bactri-ānus, a, um, adj. Relating to the city of Bactra, of Bactra: regio, Curt. 6, 6, 18: arx, id. 9, 7, 2: terra, id. 7, 4, 26: smaragdi, Plin. 37, 45, 17, § 65.

— Relating to the kingdom of Bactriana, Bactrian; hence, Bactriāni, ōrum, m., = Bactri, the Bactrians, Plin. 6, 23, 25, § 92; Curt. 7, 4, 13; 7, 4, 20; 7, 4, 25; Tac. A. 11, 8; Amm. 23, 6, 57.

—In sing., collect. for the land of Bactriana, Tac. A. 2, 60.

—Also, Bactriāna, ae, f. (sc. terra), = Bactria, Plin. 12, 9, 19, § 35.

— Bactrīnus, a, um, adj., Bactrian: camelus, App. M. 7, p. 194, 4.

— Bac-trius, a, um, adj., the same: Halcyoneus, Ov. M. 5, 135.