noun
or gno·si·ol·o·gy ˌnōsēˈäləjē, -ōzē-
( -es )
Etymology: New Latin gnoseologia, from gnoseo- (from Greek gnōsis knowledge) + Latin -logia -logy
: the philosophic theory of knowledge : inquiry into the basis, nature, validity, and limits of knowledge
gnoseology became coextensive with the whole of metaphysics — C.A.Hart