monas

from WordNet (r) 3.0 (2006)

monas
    n 1: a singular metaphysical entity from which material
         properties are said to derive [syn: {monad}, {monas}]

from The Collaborative International Dictionary of English v.0.48

Monas \Mo"nas\, n. [NL. See {Monad}.] (Zool.)
   A genus of minute flagellate Infusoria of which there are
   many species, both free and attached. See Illust. under
   {Monad}.
   [1913 Webster]