Affinity may refer to:

Commerce, finance and law

Affinity (law) In law and in cultural anthropology, affinity is the kinship relationship created or that exists between two people as a result of someone's marriage. It is the relationship which each party to a marriage has to the relations of the other part ...

, kinship by marriage * Affinity analysis, a market research and business management technique * Affinity Credit Union, a Saskatchewan-based credit union *

Affinity Equity Partners Affinity Equity Partners is one of the largest dedicated Asian private equity firms and focuses on leveraged buyout and growth capital transactions. Affinity operates as a Pan-Asian firm focusing on investment opportunities in Korea, Southeast A ...

, an Asian private equity firm * Affinity fraud, a type of scam targeting a specific demographic *

Affinity marketing Affinity marketing is a concept that consists of a partnership between a company (supplier) and an organization that gathers persons sharing the same interests to bring a greater consumer base to their service, product or opinion. This partnershi ...

, a method of extending market reach by forming partnerships and cross-selling relationships

Religion and belief

* Affinity (canon law), a kinship arising from the sexual intercourse of a man and a woman *

Affinity (Christian organisation) Affinity is a network of conservative evangelical churches and Christian agencies throughout Britain and Ireland. It was founded in 1953 as the British Evangelical Council and in 1981 numbered over 2,000 churches.Affinity group An affinity group is a group formed around a shared interest or common goal, to which individuals formally or informally belong. Affinity groups are generally precluded from being under the aegis of any governmental agency, and their purposes m ...

, a private, non-commercial and non-governmental organisation formed around a shared interest or goal

Science and technology

* ''Affinity'', the UK's first road-legal solar car, built by Cambridge University Eco Racing *

Affinity (mathematics) In Euclidean geometry, an affine transformation or affinity (from the Latin, ''affinis'', "connected with") is a geometric transformation that preserves lines and parallelism, but not necessarily Euclidean distances and angles. More generally, ...

, an affine transformation preserving collinearity * Affinity (pharmacology), a characterisation of protein-ligand binding strength * Affinity (sociology), a shared interest and commitment between persons in groups and/or willingness to associate *

Affinity (taxonomy) Affinity (taxonomy) – mainly in life sciences or natural history – refers to resemblance suggesting a common descent, phylogenetic relationship, or type. The term does, however, have broader application, such as in geology (for example, in de ...

, a suggestion of common descent or type *

Affinity chromatography Affinity chromatography is a method of separating a biomolecule from a mixture, based on a highly specific macromolecular binding interaction between the biomolecule and another substance. The specific type of binding interaction depends on the ...

, method of separating a biomolecule from a mixture *

Affinity electrophoresis Affinity electrophoresis is a general name for many analytical methods used in biochemistry and biotechnology. Both qualitative and quantitative information may be obtained through affinity electrophoresis. The methods include the so-called elect ...

, general name for many analytical methods used in biochemistry and biotechnology *

Affinity laws The affinity laws (also known as the "Fan Laws" or "Pump Laws") for pumps/fans are used in hydraulics, hydronics and/or HVAC to express the relationship between variables involved in pump or fan performance (such as head, volumetric flow rate, sha ...

, laws used in hydraulics to express relationships between variables involved in fan or pump performance * Binding affinity, a measure of the interaction of ligands with their binding sites *

Chemical affinity In chemical physics and physical chemistry, chemical affinity is the electronic property by which dissimilar chemical species are capable of forming chemical compounds. Chemical affinity can also refer to the tendency of an atom or compound to co ...

, used to describe or characterise elements' or compounds' readiness to form bonds *

Electron affinity The electron affinity (''E''ea) of an atom or molecule is defined as the amount of energy released when an electron attaches to a neutral atom or molecule in the gaseous state to form an anion. ::X(g) + e− → X−(g) + energy Note that this is ...

, energy released on formation of anions *

Processor affinity Processor affinity, or CPU pinning or "cache affinity", enables the binding and unbinding of a process or a thread to a central processing unit (CPU) or a range of CPUs, so that the process or thread will execute only on the designated CPU or CPU ...

, a computing term for the assignment of a task to a given core of a multicore CPU * Serif Europe's Affinity series of programs **

Affinity Designer Affinity Designer is a vector graphics editor developed by Serif for macOS, iPadOS, and Microsoft Windows. It is part of the "Affinity trinity" alongside Affinity Photo and Affinity Publisher. Affinity Designer is available for purchase direc ...

, a vector illustration editor **

Affinity Photo Affinity Photo is a raster graphics editor developed by Serif Ltd. for iOS, macOS, and Windows, alongside Affinity Designer and Affinity Publisher. Development of Affinity Photo started in 2009 as a raster graphics editor for macOS. Its first ve ...

, a raster graphics editor **

Affinity Publisher Affinity Publisher is a desktop publishing application developed by Serif for macOS and Microsoft Windows (with an iPadOS version being developed). It is a part of the Affinity product line along with Affinity Photo and Affinity Designer. Overvie ...

, a desktop publishing application

Media-related

Music

Affinity (band) Affinity were an English jazz-rock band, active from mid-1968 to January 1972. History Origins The origin of Affinity was circa 1965 in the science department of the University of Sussex in Brighton, England. Three science students Lynton Nai ...

, a jazz/rock band ** ''Affinity'' (Affinity album) * ''Affinity'' (Bill Evans album) * ''Affinity'' (Haken album) * ''Affinity'' (Oscar Peterson album) * ''Affinity'' (EP), a 2013 EP by the English band Press to Meco * Johnny Alegre A, a jazz collective based in Manila

Other media

* ''Affinity'' (novel), a 1999 novel by Sarah Waters ** ''Affinity'' (film), a 2008 feature film based on the novel * "Affinity" (''Stargate SG-1''), an episode from season 8 of the TV sci-fi spin-off series ''Stargate SG-1'' * ''

Elective Affinities ''Elective Affinities'' (German: ''Die Wahlverwandtschaften''), also translated under the title ''Kindred by Choice'', is the third novel by Johann Wolfgang von Goethe, published in 1809. Situated around the city of Weimar, the book relates the ...

'', a novel by Goethe

Other uses

Affinity (medieval) In post-classical history, an affinity was a collective name for the group (retinue) of (usually) men whom a lord gathered around himself in his service; it has been described by one modern historian as "the servants, retainers, and other foll ...

, late medieval retainers of a monarch in "bastard feudalism" * Affinity, West Virginia