different between concentration vs cluster

English

Etymology

concentrate +? -ion

Pronunciation

• (Received Pronunciation) IPA^(key): /?k?ns?n?t?e???n/
• (General American) IPA^(key): /?k?ns?n?t?e???n/
• Rhymes: -e???n

Noun

concentration (usually uncountable, plural concentrations)

1. The act, process or ability of concentrating; the process of becoming concentrated, or the state of being concentrated.
   1. The direction of attention to a specific object.
   2. The act, process or product of reducing the volume of a liquid, as by evaporation.
   3. The act or process of removing the dress of ore and of reducing the valuable part to smaller compass, as by currents of air or water.
2. A field or course of study on which one focuses, especially as a student in a college or university.
3. The proportion of a substance in a whole.
   1. (chemistry) The amount of solute in a solution measured in suitable units (e.g., parts per million (ppm))
4. The matching game pelmanism.

Coordinate terms

• (course of study): major, minor

Translations

See also

• salinity

Further reading

• Concentration (disambiguation) on Wikipedia.Wikipedia
• Concentration (chemistry) on Wikipedia.Wikipedia

French

Etymology

First attested 1732 concentrer +? -ation.

Pronunciation

Noun

concentration f (plural concentrations)

1. concentration (mental state of being concentrated)
2. concentration (quality of being concentrated)

Derived terms

• camp de concentration

Further reading

• “concentration” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

Interlingua

Noun

concentration (plural concentrationes)

1. concentration (state or degree of being concentrated)

English

Etymology

From Middle English cluster, from Old English cluster, clyster (“cluster, bunch, branch”), from Proto-Germanic *klus-, *klas- (“to clump, lump together”) + Proto-Germanic *-þr? (instrumental suffix), related to Low German Kluuster (“cluster”), dialectal Dutch klister (“cluster”), Swedish kluster (“cluster”), Icelandic klasi (“cluster; bunch of grapes”).

Pronunciation

• (Received Pronunciation) IPA^(key): /?kl?st?/
• (US) IPA^(key): /?kl?st?/
• Rhymes: -?st?(r)

Noun

cluster (plural clusters)

1. A group or bunch of several discrete items that are close to each other.

   a cluster of islands

   • 1595, Edmund Spenser, Colin Clouts Come Home Againe

     Her deeds were like great clusters of ripe grapes, / Which load the bunches of the fruitful vine.

2. A number of individuals grouped together or collected in one place; a crowd; a mob.

3. (astronomy) A group of galaxies or stars that appear near each other.

4. (linguistics, education) A sequence of two or more words that occur in language with high frequency but are not idiomatic; a chunk, bundle, or lexical bundle.

   examples of clusters would include "in accordance with", "the results of" and "so far"

5. (music) A secundal chord of three or more notes.
6. (phonetics) A group of consonants.

7. (computing) A group of computers that work together.
8. (computing) A logical data storage unit containing one or more physical sectors (see block).
9. (statistics, cluster analysis) A subset of a population whose members are sufficiently similar to each other and distinct from others as to be considered a distinct group; such a grouping in a set of observed data that is statistically significant.
10. (military) A set of bombs or mines released as part of the same blast.
11. (army) A small metal design that indicates that a medal has been awarded to the same person before.
12. (slang, euphemistic) A clusterfuck.
13. (chemistry) An ensemble of bound atoms or molecules, intermediate in size between a molecule and a bulk solid.

Derived terms

Descendants

Translations

Verb

cluster (third-person singular simple present clusters, present participle clustering, simple past and past participle clustered)

1. (intransitive) To form a cluster or group.

   The children clustered around the puppy.

   • ?, Alfred Tennyson, Oenone

     His sunny hair / Cluster'd about his temples, like a god's.

   • 1563, John Foxe, Actes and Monuments

     the princes of the country […] clustering together

   • 1997, Lynn Keller, Forms of Expansion: Recent Long Poems by Women, University of Chicago Press, ?ISBN, chapter 6, 281:

     On the page, “Me” is irregular but—except for a prominent drawing of a two-toned hieroglyphic eye—not radically unusual: the lines are consistently left-justified; their length varies from one to a dozen syllables; they cluster in stanzalike units anywhere from one to six lines long that are separated by consistent spaces.

2. (transitive) To collect into clusters.
3. (transitive) To cover with clusters.

Translations

Anagrams

• culters, curlest, custrel, cutlers, relucts

Dutch

Etymology

Borrowed from English cluster.

Pronunciation

• IPA^(key): /?kl?s.t?r/
• Hyphenation: clus?ter
• Rhymes: -?st?r

Noun

cluster f or m or m (plural clusters, diminutive clustertje n)

1. cluster
2. (astronomy) star cluster

   Synonyms: sterrencluster, sterrenhoop, sterrenzwerm

Derived terms

• sterrencluster

French

Etymology

Borrowed from English cluster.

Noun

cluster m (plural clusters)

1. cluster

Portuguese

Etymology

Borrowed from English cluster.

Pronunciation

• (Brazil) IPA^(key): /?kl?s.te?/

Noun

cluster m (plural clusters)

1. (music) cluster (chord of three or more notes)
2. (computing) cluster (group of computers working concurrently)

Spanish

Noun

cluster m (plural clusters or cluster)

1. Alternative spelling of clúster