- the philosophy or doctrines of Plato or his followers.
- a Platonic doctrine or saying.
- the belief that physical objects are impermanent representations of unchanging Ideas, and that the Ideas alone give true knowledge as they are known by the mind.
- the doctrine or practice of platonic love.
- the teachings of Plato and his followers, esp the philosophical theory that the meanings of general words are real existing abstract entities (Forms) and that particular objects have properties in common by virtue of their relationship with these Forms
- the realist doctrine that mathematical entities have real existence and that mathematical truth is independent of human thought
- See Neo-Platonism
