Conceptualism

Webster's Dictionary

(n.) A theory, intermediate between realism and nominalism, that the mind has the power of forming for itself general conceptions of individual or single objects.

Cyclopedia of Biblical, Theological and Ecclesiastical Literature

a term used to designate that form of speculative philosophy which does not deny the reality of objective existences, but still holds them to be certain only as results of subjective perception or cognition. It was substantially that of Abelard, Peter the Lombard, and Albert the Great. (See Nominalism)and (See Realism). It has recently been revived in a modified form by Kant, Lotze, and others.