Also found in: Thesaurus, Encyclopedia, Wikipedia.
U·ni·at(yo͞o′nē-ăt′, -ĭt) also U·ni·ate (-ĭt, -āt′)Often Offensive
Of or relating to the Eastern Catholic churches.
A member of an Eastern Catholic church.
[Russian uniyat, from Polish uniat, the Union of Brest (1596), which established the churches, from unija, union, from Late Latin ūniō; see union.]
(Eastern Church (Greek & Russian Orthodox)) designating any of the Eastern Churches that retain their own liturgy but submit to papal authority
(Eastern Church (Greek & Russian Orthodox)) a member of one of these Churches
[C19: from Russian uniyat, from Polish unja union, from Late Latin ūniō; see union]