# Derived

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**derived protein**— derived protein, = proteose. (Cf. ↑proteose) …22

**Derived category**— In mathematics, the derived category D(C) of an abelian category C is a construction of homological algebra introduced to refine and in a certain sense to simplify the theory of derived functors defined on C. The construction proceeds on the… …23

**Derived functor**— In mathematics, certain functors may be derived to obtain other functors closely related to the original ones. This operation, while fairly abstract, unifies a number of constructions throughout mathematics. Contents 1 Motivation 2 Construction… …24

**Derived set (mathematics)**— In mathematics, more specifically in point set topology, the derived set of a subset S of a topological space is the set of all limit points of S. It is usually denoted by S′. The concept was first introduced by Georg Cantor in 1872 and he… …25

**Derived row**— For other uses, see Partition (disambiguation). The term partition is also French for the sheet music of a transcription. In music using the twelve tone technique, derivation is the construction of a row through segments. A derived row is a tone… …26

**Derived unique key per transaction**— In cryptography, Derived Unique Key Per Transaction (DUKPT) is a key management scheme in which for every transaction, a unique key is used which is derived from a fixed key. Therefore, if a derived key is compromised, future and past transaction …27

**Derived trait**— For the use of the word in object oriented programming, see Inheritance (object oriented programming). In phylogenetics, a derived trait is a trait that is present in an organism, but was absent in the last common ancestor of the group being… …28

**Derived Demand**— A term used in economic analysis that describes the demand placed on one good or service as a result of changes in the price for some other related good or service. It is a demand for some physical or intangible thing where a market exists for… …29

**derived unit**— (in physics, chemistry, etc.) a unit derived from fundamental units of length, mass, and time. * * * derived unit noun A unit of measurement derived from the fundamental units of a system • • • Main Entry: ↑derive * * * derived unit, Physics. any …30

**Derived set**— A derived set may refer to: Derived set (mathematics), a construction in point set topology Derived row, a concept in musical set theory This disambiguation page lists articles associated with the same title. If an internal …