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1. Dictionary

   Con·cen·tra·tion

   /ˌkänsənˈtrāSH(ə)n/

   

   noun

   • 1. the action or power of focusing one's attention or mental effort: "frowning in concentration" Similar close attentionclose thoughtattentivenessapplicationindustryassiduousnesssingle-mindednessabsorptionengrossmentfocusingcenteringcentralizationdirectionOpposite 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 largest concentration of Canada geese on earth" Similar gatheringclustermassflockcongregationassemblageassemblycollectionaccumulationaggregationagglomeration
   • ▪ the action of gathering together closely: "the concentration of power"
   • 3. the relative amount of a given substance contained within a solution or in a particular volume of space; the amount of solute per unit volume of solution: "the gas can collect in dangerous concentrations"
   • ▪ the action of strengthening a solution by the removal of water or other 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"

   Scrabble Points: 17

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2. 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.

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

   www.dictionary.com › browse › concentration

   • Cached

   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.

4. 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.

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

   www.vocabulary.com › dictionary › concentration

   If you have great powers of concentration, that means you're able to focus all your attention on the matter at hand. Concentration can also refer to something that's clustered together or to the density or strength of a solution.

6. dictionary.cambridge.org › us › dictionaryCONCENTRATION definition | Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

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

7. www.oxfordlearnersdictionaries.com › us › definitionconcentration noun - Definition, pictures, pronunciation and...

   www.oxfordlearnersdictionaries.com › us › definition

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   concentration. noun. /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.

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

   www.collinsdictionary.com › dictionary › english

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   6 days ago · Concentration is the amount of a solute in a unit of solvent. At very low oxygen concentrations (less than 12 percent), unconsciousness and death will occur quickly and without warning. Poor agitation may produce pockets with a high concentration of one reactant and a low one of another.

9. www.collinsdictionary.com › us › dictionaryCONCENTRATION - All you need to know about it - Collins Online ...

   www.collinsdictionary.com › us › dictionary

   • Cached

   The concentration of a substance is the amount of another specified substance in a unit amount of that substance.

10. www.oxfordlearnersdictionaries.com › definition › american_englishconcentration noun - Definition, pictures, pronunciation and...

    www.oxfordlearnersdictionaries.com › definition › american_english

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    Definition of concentration noun in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

11. dictionary.cambridge.org › us › dictionaryconcentration | definition in the Cambridge Learner’s Dictionary

    dictionary.cambridge.org › us › dictionary

    • Cached

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