1. Loss or separation of the component parts of a substance, as in catabolism or decay. 2. Disorganization of psychic and behavioral processes. [dis- + L. integer, whole, intact]
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dis·in·te·gra·tion (dis-in″tə-graґshən) [dis-1 + L. integer entire] 1. the process of breaking up or decomposing. 2. disruption of integrative functions of personality in mental illness; disorganization of the psychic and behavioral processes.Medical dictionary. 2011.