What is a picture in a picture called?

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Tags

1. #expected
2. #realistically
3. #recursively
4. #known
5. #place
6. #would
7. #example
8. #where
9. #similar
10. #itself
11. #appearing
12. #effect
13. #picture
14. #abyme
15. #dutch
16. #pronunciation
17. #appear
18. #within
19. #droste