(Latin: of no [diocese])
A territory belonging to no diocese, i.e.,separated and distinct by proper boundaries from surrounding dioceses. It is ruled by a prelate, who exercises active jurisdiction over the clergy and people living in his territory. The abbies of Saint Peter, Muenster, Saskatchewan, the Belmont Abbey, North Carolina, New Norcia, Australia, and Lindi, Senegal were abbies nullius, but their jurisdiction has been suppessed and made part of a diocese.