cluster

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cluster

 [klus´ter]
a group of similar objects, events, or other elements in close proximity.
suicide cluster a group of suicides in which one seems to set off others.

clus·ter

(klŭs'ter),
A group of similar or identical objects occurring naturally in close proximity (as grapes) or so assembled (as beads).
[O.E. clyster]

cluster

A generic term for any of the regions in the UK (Eastern, North East, North West and West Midlands, London, and Southern) created after consultation with Strategic Health Authorities (SHAs) on how to best deliver local Information Technology solutions as part of the NHS Care Records initiative.

clus·ter

(klŭstĕr)
A group of similar or identical objects occurring naturally in close proximity (as grapes) or so assembled (as beads).
[O.E. clyster]

cluster,

n in epidemiology, a composite of confirmed cases of a disease, defect, or disability that occur in close proximity to one another with regard to time or space.

cluster

1. in epidemiological terms a naturally occurring group of similar units, e.g. animals which resemble each other, with respect to one or more variables, more than animals in different groups do, or a group of cases of a single disease in time or space.
2. assembly of claw and teat cups, as part of a milking machine.

cluster analysis
1. statistical methods used to group variables or observations into strongly interrelated subgroups.
2. a statistical analysis of the relationships between clusters in time and/or space.
cluster fly
see polleniarudis.
cluster sampling
see cluster sampling.
References in periodicals archive ?
We are now doing twice that figure," said Alberto Ricciotti, head of Group Pricing for the Capital Allocation Unit at UniCredit.
Total quantity or scope: The allocation unit 38014-15 (VE 15) is divided into 2 lots.
In exceptional cases of exceeding the framework can be utilized, provided that the value of the affected plan allocation unit is not exceeded.
Allocation unit Lot 5 heating systemNew installation of a gas condensing boiler 370 KW with exhaust system, new and relocation of approximately 1200 m Stahlrohleitungen, technical revision of about 90 stock radiators.
The works will be advertised as a separate allocation units according to the following breakdown: