What does adoptive father mean?

Adoptive father, from "The History of the New Five Dynasties: Liu Chuan, Empress of Minjing in Tangzhuang", refers to a man who adopted (adopted before his death) other people's children as his own children. Explain the biological father in foster care.

Legally, adoption is an identity contractual relationship that gives adopters and adoptees the same rights and obligations as legitimate children through legal means. Because the adoption society will pretend that there is a parent-child relationship between people who have no real parent-child relationship by legal norms, the adopter and the adoptee are also called legal blood relatives or imaginary blood relatives.

Legal figures call adopters adoptive parents (adoptive parents respectively) and adoptees adopted sons (adopted sons and adopted daughters respectively).

The biological parents of the adoptee are called biological parents, but for biological parents, the situation that their children are adopted by others is called "adopted" children. Once the child is adopted, the kinship with the biological parents is temporarily suspended, and there is no obligation to each other, no legal rights and no inheritance qualification.