Lewis & Short

1. Jūlĭānus, a, um, adj. [Julius], of or belonging to Julius Cæsar, Julian: vectigalia, i. e. which were introduced by Julius Cæsar, M. Anton. ap. Cic. Phil. 13, 15, 31: gladiatores, id. Ep. ad Oet. 9.
Subst.: Jūlĭā-ni, ōrum, m., i. e. soldiers who were on the side of Cæsar in the civil war, Suet. Caes. 75.