What is "ontologism"

n. (context philosophy English) An ideological system which maintains that God and divine ideas are the first object of our intelligence and the intuition of God's existence the first act of our intellect.

Ontologism is a philosophical system most associated with Nicholas Malebranche (1638-1715) which maintains that God and divine ideas are the first object of our intelligence and the intuition of God the first act of our intellectual knowledge.