From en.wikipedia.org:
[cluster] [CLUSTER(S)] may refer to: [tocright]
** Science and technology
*** Astronomy
- Cluster (spacecraft) , constellation of four European Space Agency spacecraft
- Cluster II (spacecraft) , a European Space Agency mission to study the magnetosphere
- Asteroid cluster , a small asteroid family
- Galaxy cluster , large gravitationally bound groups of galaxies, or groups of groups of galaxies
- Supercluster , the largest gravitationally bound objects in the universe, composed of many galaxy clusters
- Star cluster
- Globular cluster , a spherical collection of stars whose orbit is either partially or completely in the halo of the parent galaxy
- Open cluster , a spherical collection of stars that orbits a galaxy in the galactic plane
*** Biology and medicine
- Cancer cluster , in biomedicine, an occurrence of a greater-than-expected number of cancer cases
- Cluster headache , a neurological disease that involves an immense degree of pain
- Cluster of differentiation , protocol used for the identification and investigation of cell surface molecules present on white blood cells
- Winter cluster , in beekeeping, a well-defined cluster of honey bees in cold temperatures
- Disease cluster , a grouping of cases of disease
- Gene cluster , a group of genes (or proteins, or metabolites) whose expression or concentration is similar across a range of conditions
- Cluster of microorganisms, as in a colony
*** Chemistry
- Cluster chemistry , an array of bound atoms intermediate in character between a molecule and a solid
*** Computer science
- Computer cluster , a set of computers that work together
- Data cluster , a group of disk sectors used in a File Allocation Table
*** Economics
- Business cluster , a geographic cluster of competitive businesses
- Cluster theory , a theory that states concentrating industries in specific regions creates several advantages
*** Education
- CLUSTER , the Consortium Linking Universities of Science and Technology for Education and Research (a collection of twelve European universities which focus on science and engineering)
*** Equipment
- Cluster bomb , a type of air-dropped or ground-launched shells
- Instrument cluster of an automobile
- A bicycle cogset , either a freewheel, or cassette
- The set of tubes attached to a cow's teats for automatic milking
*** Linguistics
- Consonant cluster , a group of consonants which have no intervening vowel
- Language cluster or dialect cluster, a geographic distribution of languages
*** Math and statistics
- Cluster analysis , a set of techniques for grouping a set of objects based on intrinsic similarities
- Cluster sampling , a sampling technique used when "natural" groupings are evident in a statistical population
- Cluster graph , in graph theory, a disjoint union of complete graphs
- Clusterable graph, in balance theory
- Cluster algebra , a class of commutative rings used in representation theory
- Cluster expansion , a technique in statistical mechanics and quantum field theory
*** Physics
- Cluster (physics) , a small group of atoms or molecules
*** Urban development
- Cluster home , a type of housing development
- Research-intensive cluster , a region with a high density of research-oriented organizations
- Urban agglomeration , a cluster concept in urban development (a human settlement with a high population density and an infrastructure of built environment )
** Philosophy and religion
- Khandha , a Buddhist concept of five material and mental factors that take part in the rise of craving and clinging
- Proper name (philosophy) , a cluster of propositions that in combination pick out a unique referent
** Arts and media
*** Music
- Tone cluster , a musical chord comprising at least three consecutive tones in a scale
- _Cluster_ (album) , the 1971 eponymous album by the band Cluster
- Cluster (band) , a German electronic group
- "Cluster", a track from the album _Ben Bu Sarkiyi Sana Yazdim_ by Cem Adrian
- "Cluster", a song by P-Model from the album _Big Body_
- Cluster One , the first track on Pink Floyd's 1994 album _The Division Bell_
- "Cluster", an extended play by the pop-punk band Waterparks
*** Other media
- _Cluster_ (novels) by Piers Anthony
- _Cluster_ , a poetry collection by Souvankham Thammavongsa
- The Cluster, a character from the TV series _Steven Universe_
** Other uses
- Cluster, Pleasants County, West Virginia
- Cluster diagram , general type of diagram, which represents some kind of cluster
- Clusterfuck or cluster, slang term for a messy situation, arising in the US Marine Corps
- Clusters School of Digital Arts , an animation and visual effects training school
** See also
- Clustering (disambiguation)
[Disambiguation]