concentration ( 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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