Vickipedia

POSTULA’TION (Lat. ‘an asking’), in Canon Law, means a presentation or recommendation addressed to the superior, to whom the right of appointment to any dignity belongs, in favor of one who has not a strict title to the appointment. It is one of the forms of proposing to the pope persons nominated, but not, strictly speaking, elected, to a bishopric. It is also used in the case of elections in which the candidate, although regularly chosen by the electors, yet labors under some legal disability which involves the necessity of a dispensation. The presentation of candidates for the episcopacy, as it exists in the Roman Catholic Church in Ireland, is called postulation.