In the context of a list of items, the process of creating copies of something can be called duplication, but is there a single word for the process of removing duplicates to create a list of unique items?
I'm open to any other ways of expressing this eg:
(Adjective + list) - expressing the state of the list before and after removing duplicates. (for the after state, I feel like I could use unique list, but what would I call it in the before-removal-of-duplicates stage?)
Note that I'm not talking about duplication of the entire list i.e. "duplicated list", I'm talking about a list that has duplicated elements that should be removed