Cluster

Cluster may refer to:

Science

• Cluster (physics), a small group of atoms or molecules.
• Cluster chemistry, an array of bound atoms intermediate in character between a molecule and a solid
• Cluster sampling, a sampling technique used when "natural" groupings are evident in a statistical population
• Cluster analysis, a technique for statistical data analysis
• Consonant cluster, in linguistics

Astrophysics

• 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 health sciences

• 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
• Cluster (epidemiology), 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

Computing

• 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

Art

• Art cluster, a creative communication by Internet
• Tone cluster, a musical chord comprising at least three consecutive tones in a scale
• Cluster (band), a German rock band
• Cluster (album), the 1971 eponymous album by the band Cluster
• "Cluster", a track from the album Ben Bu Sarkiyi Sana Yazdim by Cem Adrian
• Cluster One, the first track on Pink Floyd's 1994 album The Division Bell

Engineering

• A bicycle cogset, either a freewheel, or cassette
• The instrument cluster of an automobile

Urbanism

• Business cluster, a geographic cluster of competitive businesses
• Research-intensive cluster, an region with a high density of research-oriented organizations
• Cluster home, a type of housing development
• Skyline cluster, an area of high-rise buildings that form a distinct skyline (like a CBD)

Other uses

• Cluster, Pleasants County, West Virginia
• Cluster bomb, air-dropped or ground-launched shells
• Cluster diagram, general type of diagram, which represents some kind of cluster
• Clusters School of Digital Arts, an animation and visual effects training school
• Cluster (novels) by Piers Anthony
• CLUSTER Consortium Linking Universities of Science and Technology for Education and Research
• Honey Nut Clusters, a breakfast cereal
• "Cluster", a song by P-Model from the album Big Body