Remediation

Remediation is the incorporation or representation of one medium in another medium.

According to their book Remediation: Understanding New Media by J. David Bolter and Richard A. Grusin, remediation is a defining characteristic of new digital media because digital media is constantly remediating its predecessors (television, radio, print journalism and other forms of old media).

Remediation can be either Complete or Visible. A film based on a book is remediating the printed story. The film may not provide any reference to the original story or acknowledge that it is an adaptation.
Differently, a medium like a movie clip can be used outside of the film and placed as a new medium like music. This is called Visible remediation because, "he work becomes a mosiac in which we are simultaneously aware of the individual pieces' and their new, inappropriate setting."

Bolter and Grusin, J. D B and R. A G, 2001. Remediation: Understanding New Media. 1st ed. Cambridge: MIT Press.