\Mon"ism\, n. [From Gr. ? single.]
1. (Metaph.) That doctrine which refers all phenomena to a
   single ultimate constituent or agent; -- the opposite of
   dualism.
Note: The doctrine has been held in three generic forms:
      matter and its phenomena have been explained as a
      modification of mind, involving an idealistic monism;
      or mind has been explained by and resolved into matter,
      giving a materialistic monism; or, thirdly, matter,
      mind, and their phenomena have been held to be
      manifestations or modifications of some one substance,
      like the substance of Spinoza, or a supposed unknown
      something of some evolutionists, which is capable of an
      objective and subjective aspect.
2. (Biol.) See {Monogenesis}, 1.

\Mon"ism\, n.
The doctrine that the universe is an organized unitary being
or total self-inclusive structure.
      Monism means that the whole of reality, i.e.,
      everything that is, constitutes one inseparable and
      indicisible entirety. Monism accordingly is a unitary
      conception of the world. It always bears in mind that
      our words are abstracts representing parts or features
      of the One and All, and not separate existences. Not
      only are matter and mind, soul and body, abstracts, but
      also such scientific terms as atoms and molecules, and
      also religious terms such as God and world. --Paul
                                               Carus.