- a member of a Macedonian dynasty, 312–64 b.c., that ruled an empire that included much of Asia Minor, Syria, Persia, Bactria, and Babylonia.
- of or relating to the Seleucids or their dynasty.
- a member of a royal dynasty (312–64 bc) that at the zenith of its power ruled over an area extending from Thrace to India
- of, relating to, or supporting the Seleucids or their dynasty
