I. An Academic philosopher of Athens, teacher of Cicero about A. U. C. 663, Cic. Brut. 89, 306; id. Ac. 2, 6, 17; id. Tusc. 2, 3, 9; 5, 37, 107; id. N. D. 1, 40, 113.—
II. A celebrated architect in Athens, Cic. de Or. 1, 14, 62; Vitr. 7 praef. § 12; cf. Sillig, Catal. Artif. s. h. v.—
III. A Greek physician, a native of Tarsus, the inventor of an eye-salve, Cels. 6, 6, 3.—Hence, adj.: Phĭlōnĭānus , a, um, of Philo: “Philonianum antidotum,” Marc. Emp. 20.—As subst.: Phĭlōnĭum , i, n., the same, Ser. Samm. 22, 396.—
IV. A Roman surname: Q. Publicius Philo, consul A. U. C. 439, Inscr. Grut. 291.