term:

Adoptive

adoptive adj

1 a : having adopted [an parent]
b : having been adopted [an child]
2 : made or acquired by accepting as one's own the words or actions of another [to constitute an admission…defendant must actually understand what was said and have an opportunity to deny it "United States v. White, 766 F. Supp. 873 (1991)"]

Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.