Simulacrum

I use this simply in the sense of copy, mimesis. But Brian Massumi has a more particular definition:

Massumi, Brian, 'REALER THAN REAL. The Simulacrum According to Deleuze and Guattari'
http://www.anu.edu.au/HRC/first_and_last/works/realer.htm

A common definition of the simulacrum is a copy of a copy whose relation to the model has become so attenuated that it can no longer properly be said to be a copy. It stands on its own as a copy without a model. Fredric Jameson cites the example of photorealism. The painting is a copy not of reality, but of a photograph, which is already a copy of the original.

Note 9. Fredric Jameson, "Postmodernism, or the Cultural Logic of Capitalism," New Left Review, no. 146 (July-August 1984). p. 75.