externalization

noun

1. (countable, uncountable)The process of making something external, or visible from the outside.
2. (countable, uncountable)A physical thing that typifies an abstract thing; an embodiment or personalization.
3. (countable, uncountable)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.