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Webster 1913 Edition

Noun.

(Eccl. Hist.)

A follower of Eusebius, bishop of Cæsarea, who was a friend and protector of Arius.

Noun.

An Arian, so called from one Eusebius.

Eusebian ‎(comparative more Eusebian, superlative most Eusebian)

Of or pertaining to Eusebius of Caesarea (c. AD 263–339), Ancient Roman historian, exegete, and Christian polemicist.

Eusebian ‎(plural Eusebians)