A member of the Uniat Church; Also called: Uniate.

Any of several Eastern churches acknowledging papal authority but retaining their own rites and canon law; Also called: Uniate Church.

A Christian of a church adhering to an Eastern rite and discipline but submitting to papal authority

Any of the Orthodox Churches that accept the Catholic faith and the supremacy of the pope and are in full communion with the Roman Catholic Church, but retain their own liturgy and separate organization.
In Ukraine, despite being proscribed 1946–89, the Uniate Church claimed some 4.5 million adherents when it was once again officially recognized. Its rehabilitation was marked by the return of its spiritual leader, Cardinal Miroslav Lubachivsky, to take up residence in Lvi'v in W Ukraine after 52 years' exile in Rome.