Most religious orders do not put our constitutions out for the laity. They are considered internal documents for use by the members of the order or religious of other orders. Often, they are highly classified documents, especially in the orders, as opposed to the congregations.
The term definitor is a medieval term for what today would be a councilor. You find definitors among Carmelites, Franciscans and Dominicans. Definitors have no power. They are to council the major superior, be it the provincial superior or the general superior.
In reality, councils in religious orders, not in congregations, have no power. They can vote on anything. But the major superior can overrule whatever they vote on. He has absolute power. The only authority over a prinvincial superior is the general superior. The only authority over the general superior is the general chapter.
The ranking from top to bottom goes like this:
Prior General and his council or definitory
Prior Provincial and his council or definitory
Each of these superiors can delegate authority to their definitors, but may delegate over their heads to someone else not on the council.
This organization is only for the friars, not for the nuns or the seculars. They have their own organizational chart.
Br. JR, OSF