externalization

From externalize +‎ -ation.

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externalization (countable and uncountable, plural externalizations)

1. The process of making something external, or visible from the outside.
2. A physical thing that typifies an abstract thing; an embodiment or personalization.
3. (psychology) In Freudian psychology, an unconscious defense mechanism by which an individual "projects" his or her own internal characteristics onto the outside world or other people.