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   Clus·ter

   /ˈkləstər/

   

   noun

   • 1. a group of similar things or people positioned or occurring closely together: "clusters of creamy-white flowers" Similar bunchclumpcollectionmassknotgroupclutchbundlenestagglomerationconglomerationaggregateracemepanicleinflorescencetrusscrowdgroupknothuddlebunchgatheringthrongswarmflockpacktroupepartybandbodycollectionassemblagecongregationinformal:ganggaggle
   • ▪ a group of stars or galaxies forming a relatively close association: "there are several clusters in Cassiopeia"
   • ▪ a natural subgroup of a population, used for statistical sampling or analysis: "ten clusters from all the primary health centers were selected"
   • ▪ a group of cases of a disease, especially an infectious disease or type of cancer, that occur close together in time or space: "clusters of the disease have been reported, leading to speculation about person-to-person transmission"
   • ▪ a group of consonants pronounced in immediate succession, as str in strong.
   • ▪ a group of atoms of the same element, typically a metal, bonded closely together in a molecule: "noble-metal clusters supported on an acidic carrier"

   verb

   • 1. be or come into a cluster or close group; congregate: "the children clustered around her skirts"
   • ▪ (of data points) have similar numerical values: "students tended to have scores clustering around 70 percent"

   Word Origin Old Englishclyster; probably related to clot.

   Scrabble Points: 9

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