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Webster 1913 Edition
Equilibration
Eˊqui-li-bra′tion
,Noun.
 1. 
Act of keeping a balance, or state of being balanced; equipoise. 
In . . . running, leaping, and dancing, nature’s laws of 
equilibration 
are observed. J. Denham.
2. 
(Biol.) 
The process by which animal and vegetable organisms preserve a physiological balance. 
H. Spenser.
 Webster 1828 Edition
Equilibration
EQUILIBRA'TION
,Noun.
  Nature's laws of equilibration.