western Copy link Outline 1. ad occĭdentem2. occĭdentālis, Plin.3. occĭduus (poet.) • western: 1. ad occĭdentem: Cic.. v. west (subs.). 2. occĭdentālis, Plin.: Gell. 3. occĭduus (poet.): the Crab has set in the w. waters, Cancer occiduas subivit aquas, Ov. F. 1, 314.