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Noun: monad (monades,monads)  'mow,nad or 'mó,nad
  1. (chemistry) an atom having a valence of one
     
  2. A singular metaphysical entity from which material properties are said to derive
    - monas
     
  3. (biology) a single-celled microorganism (especially a flagellate protozoan)

Derived forms: monads, monades

Type of: 1, ace, atom, I, microorganism, micro-organism, one, single, unity

Encyclopedia: Monad