|1.||philosophy Compare dualism materialism See also idealism the doctrine that the person consists of only a single substance, or that there is no crucial difference between mental and physical events or properties|
|2.||philosophy Compare pluralism the doctrine that reality consists of an unchanging whole in which change is mere illusion|
|3.||the epistemological theory that the object and datum of consciousness are identical|
|4.||the attempt to explain anything in terms of one principle only|
|[C19: from Greek monos single + |
A position in metaphysics that sees only one kind of principle whereas dualism sees two. On the question of whether people's minds are distinct from their bodies, for example, a monist would hold either that mental conditions are essentially physical conditions (materialism), or that bodies depend on minds for their existence (idealism).