postulator

Noun postulator has 2 senses

• postulator(n = noun.person) - (Roman Catholic Church) someone who proposes or pleads for a candidate for beatification or canonization;
is a kind of clergyman, man of the cloth, reverend

• postulator(n = noun.person) - someone who assumes or takes something for granted as the basis of an argument;
is a kind of affirmer, asserter, asseverator, avower, declarer
Derived form verb postulate₂