The formation, or maintenance, of an equilibrium(noun)
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Use "equilibration" in a sentence
"What drives the equilibration is the pressure difference between on side and the other."
"And the highest form of evolution is reached when there is a harmony between concentration and differentiation, a harmony which Spencer calls equilibration and which he defines as a moving equilibrium."
"Such a deduction is, perhaps, possible for the more elementary forms of evolution, integration and differentiation; but it is not possible for the highest form, the equilibration, which is a harmony of integration and differentiation."