Surrogation

noun
1.
a person appointed to act for another; deputy.
2.
(in some states) a judicial officer having jurisdiction over the probate of wills, the administration of estates, etc.
3.
the deputy of an ecclesiastical judge, especially of a bishop or a bishop’s chancellor.
4.
a substitute.
5.
a surrogate mother.
adjective
6.
regarded or acting as a surrogate:
a surrogate father.
7.
involving or indicating the use of a surrogate mother to conceive or carry an embryo:
surrogate parenting.
verb (used with object), surrogated, surrogating.
8.
to put into the place of another as a successor, substitute, or deputy; substitute for another.
9.
to subrogate.
noun (ˈsʌrəɡɪt)
1.
a person or thing acting as a substitute
2.
(mainly Brit) a deputy, such as a clergyman appointed to deputize for a bishop in granting marriage licences
3.
(psychiatry) a person who is a substitute for someone else, esp in childhood when different persons, such as a brother or teacher, can act as substitutes for the parents
4.
(in some US states) a judge with jurisdiction over the probate of wills, etc
5.
(modifier) of, relating to, or acting as a surrogate: a surrogate pleasure
verb (transitive) (ˈsʌrəˌɡeɪt)
6.
to put in another’s position as a deputy, substitute, etc
7.
to appoint as a successor to oneself

surrogate sur·ro·gate (sûr’ə-gĭt, -gāt’, sŭr’-)
n.

One that takes the place of another; a substitute.

A person or an animal that functions as a substitute for another, as in a social or family role.

A figure of authority who takes the place of the father or mother in a person’s unconscious or emotional life.

A surrogate mother.