n :  the combining and coordinating of separate parts or elements into a unified whole: as  a  :  coordination of mental processes into a normal effective personality or with the individual's environment <failure of association and failure of take place among neurotic individuals -R. M. Dorcus & G. W. Shaffer>   b  :  the process by which the different parts of an organism are made a functional and structural whole esp. through the activity of the nervous system and of hormones .
 
 
 
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