Of or pertaining to any of several <xref>Christian</xref> <xref>Churches</xref>, mostly from Eastern Europe, that are in <xref>communion</xref> with the <xref>Roman Catholic Church</xref>, but use there own <xref>language</xref> and <xref>customs</xref>
User Defined Definitions
"a member of the Uniat Church"
"of or relating to former Eastern Christian or Orthodox churches that have been received under the jurisdiction of the Church of Rome but retain their own rituals and practices and canon law"