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1. Dictionary

   concentration

   /ˌkɒnsnˈtreɪʃn/

   noun

   • 1. the action or power of focusing all one's attention: "she was frowning in concentration" Similar close attentionclose thoughtattentivenessapplicationindustryassiduousnesssingle-mindednessabsorptionengrossmentfocusingcentringcentralizationdirectionOpposite inattentiondistraction
   • ▪ dealing with one particular thing above all others: "concentration on the needs of the young can mean that the elderly are forgotten"
   • 2. a close gathering of people or things: "the island has the greatest concentration of seabirds in the north-west" Similar gatheringclustermassflockcongregationassemblageassemblycollectionaccumulationaggregationagglomeration
   • ▪ the action of gathering together closely: "the concentration of power in the hands of nobles"
   • 3. the relative amount of a particular substance contained within a solution or mixture or in a particular volume of space: "the gas can collect in dangerous concentrations"
   • ▪ the action of strengthening a solution by the removal or reduction of the diluting agent or by the selective accumulation of atoms or molecules: "by concentration of cell contents and supercooling, frost-hardened plant tissues survive temperatures down to −10°C"

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2. dictionary.cambridge.org › dictionary › englishCONCENTRATION | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

   • Cached

   a large number or amount of something in the same place: There is a heavy concentration of troops in the area. [ C or U ] chemistry specialized. the exact amount of one particular substance that is found in another substance: a concentration of one part per million. High concentrations of toxic elements were found in the polluted areas.

3. www.merriam-webster.com › dictionary › concentrationConcentration Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › concentration

   • Cached

   The meaning of CONCENTRATION is the act or process of concentrating : the state of being concentrated; especially : direction of attention to a single object. How to use concentration in a sentence.

4. www.dictionary.com › browse › concentrationCONCENTRATION Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › concentration

   • Cached

   noun. the act of concentrating; the state of being concentrated. exclusive attention to one object; close mental application. something concentrated: a concentration of stars. Military. the assembling of military or naval forces in a particular area in preparation for further operations.

5. www.collinsdictionary.com › dictionary › englishCONCENTRATION definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

   • Cached

   We can define the concentration of a solution as the amount of solute present in a quantity of the solvent. pH is a measure of the concentration of hydrogen ions in a solution. The concentration of a substance is the amount of another specified substance in a unit amount of that substance.

6. www.vocabulary.com › dictionary › concentrationConcentration - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › concentration

   noun. complete attention; intense mental effort. synonyms: absorption, engrossment, immersion. see more. noun. great and constant diligence and attention. synonyms: assiduity, assiduousness. see more. Pronunciation. US. /ˈkɑnsənˌtreɪʃən/

7. www.oxfordlearnersdictionaries.com › english › concentrationconcentration noun - Definition, pictures, pronunciation and...

   www.oxfordlearnersdictionaries.com › english › concentration

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   /ˌkɒnsnˈtreɪʃn/ /ˌkɑːnsnˈtreɪʃn/ [uncountable] the ability to direct all your effort and attention on one thing, without thinking of other things. This book requires a great deal of concentration. Tiredness affects your powers of concentration. One momentary lapse in concentration could prove fatal.

8. www.oed.com › dictionary › concentration_nconcentration, n. meanings, etymology and more - Oxford English...

   www.oed.com › dictionary › concentration_n

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   There are 15 meanings listed in OED's entry for the noun concentration, three of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

9. dictionary.cambridge.org › learner-english › concentrationconcentration | definition in the Cambridge Learner’s Dictionary

   dictionary.cambridge.org › learner-english › concentration

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   Contents. concentration meaning: 1. the ability to think carefully about something you are doing and nothing else 2. a large number…. Learn more.

10. www.thefreedictionary.com › concentrationConcentration - definition of concentration by The Free...

    www.thefreedictionary.com › concentration

    • Cached

    n. 1. intense mental application; complete attention. 2. the act or process of concentrating. 3. something that is concentrated. 4. (Chemistry) the strength of a solution, esp the amount of dissolved substance in a given volume of solvent, usually expressed in moles per cubic metre or cubic decimetre (litre). Symbol: c.

11. www.ldoceonline.com › dictionary › concentrationconcentration | meaning of concentration in Longman Dictionary of...

    www.ldoceonline.com › dictionary › concentration

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    concentration meaning, definition, what is concentration: the ability to think about something car...: Learn more.