Definition from Wiktionary, the free dictionary
Acacian (plural undefined)
- A follower of Acacius of Caesarea, a 4th century bishop.
Acacian (not comparable)
- Of or relating to the Acacians.
- Relating to a rift that occurred in the early 6th century, between the Eastern and Western Christian churches, occurring during the rule of Patriarch Acacius of Constantinople.