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Cluster may refer to:


Science and technologyEdit


  • Star cluster, referring to both open and globular clusters
  • Open cluster, a spherical collection of stars that orbits a galaxy in the galactic plane
  • Globular cluster, a spherical collection of stars whose orbit is either partially or completely in the halo of the parent galaxy. They are older, more densely populated, and contain more stars than open clusters.
  • 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
  • Cluster mission, a European Space Agency mission to study the magnetosphere
  • Cluster (spacecraft)

Biology and medicineEdit

  • 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
  • Genetic 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

Computing and data scienceEdit

  • Computer cluster, a group of loosely coupled computers that work together closely
  • Data cluster, a group of disk sectors used in a File Allocation Table
  • Cluster analysis, a technique for statistical data analysis
  • Cluster sampling, a sampling technique used when "natural" groupings are evident in a statistical population
  • Clusterable graph, a signed-graph with no cycles with exactly one negative link

Other uses in science and technologyEdit

Arts and mediaEdit


Other mediaEdit

Urban developmentEdit

Other usesEdit