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  • Relationships 1
  • Economics 2
  • Arts 3
  • Science and technology 4
  • Other uses 5

A surrogate is a substitute or deputy for another person in a specific role and may refer to:



  • Ersatz, an artificial replacement differing in kind from and inferior in quality to what it replaces.


Science and technology

  • Surrogate model, used in engineering design
  • Surrogate endpoint, a measure of effect in clinical trials
  • Surrogate key, a unique database identification key
  • Surrogate proxy, a type of server network setup
  • Surrogate character, any of a range of Unicode codepoints which are used in pairs in UTF-16 to represent characters beyond the Basic Multilingual Plane.
  • Surrogate data testing, a technique for identifying possible nonlinearity in data.
  • Surrogate, used in library science. Metadata is created to present information resources. The metadata services as the surrogate of stored information resources.
  • Surrogate species, used in ecology and conservation biology to indicate a keystone, indicator, umbrella, sentinel, or flagship species.

Other uses

  • Surrogate (clergy), a deputy of a bishop or ecclesiastical judge
  • Surrogate Court, a court primarily concerned with the distribution of assets of a decedent
  • Surrogate alcohol, a substance containing alcohol that is consumed, though it is not meant for human consumption
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