the doctrine, intermediate between nominalism and realism, that universals exist explicitly in the mind as concepts, and implicitly in things as shared qualities
See conceptualism in American Heritage Dictionary 4
noun
Philosophy The doctrine, intermediate between nominalism and realism, that universals exist only within the mind and have no external or substantial reality.
A school of abstract art or an artistic doctrine that is concerned with the intellectual engagement of the viewer through conveyance of an idea and negation of the importance of the art object itself.