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1 definition found
 for Doctrine of atoms
From The Collaborative International Dictionary of English v.0.48 :

  Atomic \A*tom"ic\, Atomical \A*tom"ic*al\, a. [Cf. F. atomique.]
     1. Of or pertaining to atoms.
        [1913 Webster]
  
     2. Extremely minute; tiny.
        [1913 Webster]
  
     Atomic bomb, see atom bomb in the vocabulary.
  
     Atomic philosophy, or Doctrine of atoms, a system which,
        assuming that atoms are endued with gravity and motion,
        accounted thus for the origin and formation of all things.
        This philosophy was first broached by Leucippus, was
        developed by Democritus, and afterward improved by
        Epicurus, and hence is sometimes denominated the Epicurean
        philosophy.
  
     Atomic theory, or the Doctrine of definite proportions
        (Chem.), teaches that chemical combinations take place
        between the supposed ultimate particles or atoms of
        bodies, in some simple ratio, as of one to one, two to
        three, or some other, always expressible in whole numbers.
        
  
     Atomic weight (Chem.), the weight of the atom of an element
        as compared with the weight of the atom of hydrogen, taken
        as a standard.
        [1913 Webster]

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