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concentration

concentration

130 3.5
A large number of people or things gathered in one place
  • noun
  • /ˌkɒnsənˈtreɪʃən/
: concentración
  • The key issue in the supply of oil is the concentration of proven reserves in the Middle East.
  • a concentration camp
  • concentration of poverty
  • concentration of power

They each spent four years in concentration camps, many camps.

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Examples

  • But we do have a society now where people, we have an increasing concentration of wealth at the top.

  • The schools were located in low-income inner-city neighborhoods with high concentrations of Mexican Americans.

    Academic text (2008)
  • This extreme level of stock performance concentration can resolve itself in one of three ways.

  • We can support the Democrats that are speaking out against the concentration of wealth to a few Americans.

  • There are places in the United States that simply don't have the concentration that others do.

  • And unsurprisingly, what we see is a concentration in the centre and in certain areas where most people live.

  • The land law in this sense was designed to prevent land concentration or a large-scale land grab.

    Academic text (2008)
  • Of the businesses affected, there is a large concentration in the automotive and high-tech industries.

    Academic text (2011)
  • In the city, there is a high concentration of cultural events during the summer months.

  • The research showed a significant concentration of pollutants in the river near the factory.

Synonyms

gathering
vsconcentration
52 1.4

An act of collecting people or things into one place

highlights a high density or crowding aspect beyond simple collection acts
density
vsconcentration
44 4.2

How full a place is of people or things

includes the action of bringing people or things into one place as well
aggregation
vsconcentration
12 6.1

A group of things joined together as one whole

stresses high density or crowding in an area rather than mere grouping
crowding
vsconcentration
8 2.1

A large number of people in a small place that makes it feel cramped

also involves the act of bringing people together rather than only the cramped result
clustering
vsconcentration
8 4.1

A group of similar things close together

brings many things together regardless of their similarity in type
agglomeration
vsconcentration
1 8.6

A group of things or people gathered together

focuses on the action of bringing together rather than the resulting mass
denseness
vsconcentration
1 4.3

How closely things are packed together, for example in a crowd or forest

also implies an active bringing together into one area not just a quality

Antonyms

220 2.6

The process of moving apart or staying apart

64 3.0

How something spreads over an area or among people

16 5.2

The spreading of things over a wide area, for example seeds or people

diffusion
  • Specialized
8 4.8

Movement of particles from a crowded area to a less crowded area

Compounds

concentration camp
  • Offensive
59 5.6

A place where many people are imprisoned without trial in harsh, crowded conditions

A Nazi camp near Munich where the government locked up and killed Jews and other people during the Holocaust

A camp in southwest Poland where Nazis killed many people, mostly Jewish people, during World War II

1 6.0

A gradual change in the amount of a dissolved substance from high to low across a space

A place like a prison in northwest Germany where Nazis held and killed many Jewish people during World War II

A camp in central Germany run by the Nazis where many people are imprisoned and killed during World War II

concentration camp
  • Offensive
1 6.8

A place or situation where people are kept under very harsh, crowded, and controlled conditions

molar concentration
  • Specialized
1 5.6

Amount of a substance dissolved in one liter of solution measured in moles per liter

1 5.7

The amount of hydrogen ions in a liquid that shows how acidic it is

molal concentration
  • Specialized
8.6

The amount of dissolved substance in each kilogram of the liquid that holds it

How Dense

overcrowding
22 2.8
concentration
130 3.5
crowding
8 2.1

Surface Forms

concentration singular

Morphology

concentration = concentrate (transparent) = concentrate + ion

The noun denotes the result or state of concentrating (gathering together), so the derivation from 'concentrate' + '-ion' is direct.

Etymology

Concentration comes from the parts con- 'together' and center 'middle', so it once meant bringing people or things into one place. That is why it can mean a gathering or a high number of things crowded in one area, such as troops gathered for an attack.