What is Advowson Presentative?

Legal Definition
The usual kind of advowson, where the patron has the right of presentation to the bishop, or ordinary, and moreover to demand of him to institute his clerk, if he finds him canonically qualified. 2 Bl. Comm. 22; 1 Crabb, Real Prop. p. 131, § 119.
-- Black's Law Dictionary
Legal Definition
An advowson whereby the patron has a right of presentation to the bishop or ordinary.
-- Ballentine's Law Dictionary