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Webster 1913 Edition

Adj.

[Gr. [GREEK] independent; [GREEK] self + [GREEK] head.]

(Eccl. Hist.)

Having its own head; independent of episcopal or patriarchal jurisdiction, as certain Greek churches.

autocephalous ‎(comparative more autocephalous, superlative most autocephalous)

(Christianity, of a church or bishop) Self-governing: independent of other episcopal jurisdiction (to a greater degree than an autonomous church).

a self-governing church