the rite of an Eastern church, usually observed in the national language of the country where the church is located.
a Uniate church.
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British Dictionary definitions for eastern rite
the rite and liturgy of an Eastern Church or of a Uniat Church
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012