Subtype
A sub-type is a sub-unit of a specific entity . The term is mainly used in medicine and computer science .
The word is probably derived from English subtype , literally "Unterart" or "Nebenart" (from Latin sub for "under, around, against; below, at" and typus [from ancient Greek τύπος týpos ] to German "Typus, Typ" or "Type").
Definitions
medicine
In medicine , subtypes are delineated (or defined ) as follows :
- to differentiate the variants of pathogens (especially viruses ) on the basis of certain surface molecules that lead to a variability of the disease-causing effect, for example in the case of influenza viruses (→ list of subtypes of the influenza A virus )
- for sub-forms of certain diseases
- for subtypes of different receptors (e.g. the α1-adrenoceptor ) for example due to their different pharmacological behavior
- for sub-forms of certain tumors
Computer science
In computer science is under a subtype of a type of data understood, whose values can be used anywhere, where values of some other data type, the so-called super type (from English supertype to dt. Superordinate type or upper / Überart ), are used can (see also Liskov's substitution principle and super class ). One example is a derived class in object-oriented programming - a descendant of another class , the base class , created by the programming concept of inheritance .
Single receipts
- ↑ subtype ( Memento from May 23, 2016 in the Internet Archive ) (English-German) - Duden , Langenscheidt ; 2015
- ↑ sub-, Sub- - Duden , Bibliographisches Institut ; 2016
- ^ Typus - Duden , Bibliographisches Institut ; 2016
- ↑ Type - Duden , Bibliographisches Institut ; 2016