Lewis Short
Būcĕphălas | -lus, i | Būcĕphăla, ōrum | Būcĕphăla, ae | -la, ae | -īa, ēs | -ē, i | -lŏs (noun M.n.f.f.f.f) : (, , Paul. ex Fest. p. 32 Müll.; , Jul. Val. Rer. Gest. Alex. M. 3, 11), , = Βουκεφάλας (Macedon. = Βουκέφαλος, that which is arked with the figure of a bullock's head—βοῦς, κεφαλή—or so called from the breadth of its forehead)
* The horse of Alexander the Great, Curt. 6, 5, 18; 9, 3, 23; Gell. 5, 2, 1; acc. Bucephalan, Plin. 8, 42, 64, § 154.—Hence
* (or , , , Curt. 9, 3, 23; or , , ; or , , , Just. 12, 8, 8; or , , , Gell. 5, 2, 5), = Βουκέφαλα, a town in India, on the Hydaspes, built by Alexander, and named after his horse, Plin. 6, 20, 23, § 77; Sol. 45.
Charlton T. Lewis, Charles Short, A Latin Dictionary