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atomic number
atomic particle
atomic physics
atomic radius
atomic reactor
atomic theory
atomic veteran
atomic weight
atomicity
atomise, etc
atomism
atomize
atomizer
atomy
atonal
atonalism
atonality
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atomicity
at·o·mic·i·ty [ àttə míssətee ]


noun 
Definition:
 
1. atomic composition: the number of atoms in a molecule of a chemical element
2. atomic nature: the state of being composed of atoms
3. chemistry 
Same as  valence (sense 1)

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