1. praetōrĭānus, a, um, adj. [praetorium], of or belonging to the body-guard, prœtorian (post-Aug.): praetorianus miles, a soldier of the imperial body-guard, a prœtorian, Tac. H. 2, 44: pars praetoriani equitis, id. A. 1, 24: milites, Plin. 6, 29, 35, § 181: cohortes, id. 9, 6, 5, § 15: exercitus, Suet. Vesp. 6: praefectura, i. e. praefecti praetorio, Aur. Vict. Epit. 10.
Plur. as subst.: praetōrĭāni, ōrum, the prœtorians, the prœtorian guards, Tac. H. 1, 74; id. A. 6, 3.