1. Acacian - Noun
2. Acacian - Adjective
Acacian (plural Acacians)
A follower of Acacius of Caesarea, a 4th-century bishop.
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.
Source: en.wiktionary.org