surrogate

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. One that takes the place of another; a substitute.
2. n. A person or animal that functions as a substitute for another, as in a social or family role.
3. n. A surrogate mother.
4. n. Psychology A figure of authority who takes the place of the father or mother in a person's unconscious or emotional life.
5. n. Law A judge in New York and some other states having jurisdiction over the probate of wills and the settlement of estates.
6. adj. Substitute.
7. v. To put in the place of another, especially as a successor; replace.
8. v. To appoint (another) as a replacement for oneself.

Century Dictionary and Cyclopedia

1. To put in the place of another; substitute.
2. n. In a general sense, a substitute; a person appointed or deputed to act for another, particularly the deputy of an ecclesiastical judge, most commonly of a bishop or his chancellor.
3. n. In the State of New York, a judge having jurisdiction over the probate of wills and the administration of estates.
4. n. Something that is substituted for another thing; something employed to serve the purpose or perform the functions of another.
5. n. Specifically, a substance used in industrial chemistry instead of some other of more or less similar properties and usually of greater value. Thus the product of the action of sulphur on colza-oil is sometimes used as a ‘rubber surrogate’ to mix with genuine vulcanized india-rubber.

Wiktionary

1. n. A substitute (usually of a person, position or role).
2. n. A person or animal that acts as a substitute for the social or pastoral role of another, such as a surrogate mother.
3. n. chiefly UK A deputy for a bishop in granting licences for marriage.
4. n. US law : A judicial officer of limited jurisdiction, who administers matters of probate and intestate succession and, in some cases, adoptions.
5. n. A surrogate or surrogate key is a unique identifier for either an entity in the modeled world or an object in the database.
6. n. computing Any of a range of Unicode codepoints which are used in pairs in UTF-16 to represent characters beyond the Basic Multilingual Plane.
7. adj. Of, concerning, relating to or acting as a substitute.
8. v. transitive To replace or substitute something with something else; appoint a successor.

GNU Webster's 1913

1. n. A deputy; a delegate; a substitute.
2. n. engraving The deputy of an ecclesiastical judge, most commonly of a bishop or his chancellor, especially a deputy who grants marriage licenses.
3. n. In some States of the United States, an officer who presides over the probate of wills and testaments and yield the settlement of estates.
4. n. a surrogate mother.
5. v. rare To put in the place of another; to substitute.

WordNet 3.0

1. n. someone who takes the place of another person
2. n. a person appointed to represent or act on behalf of others
3. adj. providing or receiving nurture or parental care though not related by blood or legal ties