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interactionism

noun
in·​ter·​ac·​tion·​ism | \-shəˌnizəm\
plural -s

Definition of interactionism 

1 : a theory that mind and body are distinct and interact causally upon one another — compare double-aspect theory, psychophysical parallelism

2 : a theory that derives social processes (conflict, competition, cooperation) from human interaction

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