Final answer:
A woman who agrees to bear an infant for another woman is termed a surrogate mother. Surrogacy involves the surrogate becoming pregnant using a man's sperm and her own egg, giving birth, and then giving the child up for adoption to the couple. There is also the option of a gestational carrier who carries an embryo from the intended parents to term.
Step-by-step explanation:
A woman who agrees to bear an infant for another woman is termed a surrogate mother. This is a distinct arrangement where a surrogate mother becomes pregnant using a man's sperm and her own egg, carries the fetus to term, and then gives up the baby at birth for adoption by the sperm donor and his partner. It's a choice often made by women who cannot use their own eggs or who carry a risk of passing on a germline mutation to their offspring. In contrast, a gestational carrier is a woman who receives a transplanted embryo from a couple, carries it to term, and then gives the child to the parents after birth. This might be an option for women who are unable to safely carry a pregnancy due to health concerns, as well as for same-sex male couples seeking to have a biological connection to their child.