concentration meaning, concentration definition | English Cobuild dictionary

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  ( concentrations    plural  )
1       n-uncount   Concentration on something involves giving all your attention to it.  
Neal kept interrupting, breaking my concentration..., We lacked concentration and it cost us the goal and the game.     
2       n-var   A concentrationof something is a large amount of it or large numbers of it in a small area.  
usu N of n  
The area has one of the world's greatest concentrations of wildlife..., There's been too much concentration of power in the hands of central authorities.     
3       n-var   The concentrationof a substance is the proportion of essential ingredients or substances in it.  
with supp, oft N of n, n N  
pH is a measure of the concentration of free hydrogen atoms in a solution...     

concentration camp        ( concentration camps    plural  ) A concentration camp is a prison in which large numbers of ordinary people are kept in very bad conditions, usually during a war.      n-count  
Translation English Cobuild Collins Dictionary  


1    absorption, application, heed, single-mindedness  
2    bringing to bear, centralization, centring, combination, compression, consolidation, convergence, focusing, intensification  
3    accumulation, aggregation, cluster, collection, convergence, horde, mass  
1    absent-mindedness, disregard, distraction, inattention  
2 & 3    diffusion, dispersal, scattering, spreading-out  

English Collins Dictionary - English synonyms & Thesaurus  

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