1the action or process of integrating:economic and political integrationintegration of individual countries into trading blocs
the intermixing of people or groups previously segregated:integration is the best hope for both black and white Americans
2 Mathematics the finding of an integral or integrals:integration of an ordinary differential equationmathematical integrations
3 Psychology the coordination of processes in the nervous system, including diverse sensory information and motor impulses:visuomotor integration
Psychoanalysis the process by which a well-balanced psyche becomes whole as the developing ego organizes the id, and the state that results or that treatment seeks to create or restore by countering the fragmenting effect of defense mechanisms.