a bishop's see in the county of Cavan and province of Ulster in Ireland. It was called in former ages Clunus, or Clunis, i.e. the "sequestered place;" and is situated near Lough Earn. St Fedlimid founded this bishopric in the fifth century; it was afterwards removed to an obscure village called Triburna; where it continued until the year 1454, when Andrew Macbrady bishop of Triburna erected a church on the site of that founded by St Fedlimid, to whose memory it was dedicated, and denominated Kilmore, or "the great church." At present there is neither cathedral, chapter, nor canons, belonging to this see; the small parish church contiguous to the episcopal house serving the purpose of a cathedral.