The phrase "adopted daughter" refers to a girl or young woman who becomes part of a family through legal adoption. She may not have been born into that family but is loved and treated as if she were their biological child. Full definition
My two month old adopted daughter has been taking the formula since she was about three weeks old, when we ran out of breast milk donated by a friend. (westonaprice.org)
She wasn't looking to leave, especially after adopting her daughter, at least not to start a regular graduate degree program. (gse.harvard.edu)