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concentration

concentration

115 3.5
A large number of people or things gathered in one place
  • noun
  • /ˌkɒnsənˈtreɪʃən/
translation icon : 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

density
vsconcentration
55 4.2

How full a place is of people or things

includes the action of bringing people or things into one place as well
gathering
vsconcentration
47 1.4

An act of collecting people or things into one place

highlights a high density or crowding aspect beyond simple collection acts
aggregation
vsconcentration
11 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
9 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
6 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
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

89 2.6

The process of moving apart or staying apart

64 3.0

How something spreads over an area or among people

17 5.2

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

diffusion
  • Specialized
3 4.8

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

Compounds

concentration camp
  • Offensive
49 5.6

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

concentration camp
  • Offensive
3 6.8

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

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

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

molar concentration
  • Specialized
5.6

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

molal concentration
  • Specialized
8.6

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

5.7

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

How Dense

overcrowding
22 2.8
concentration
115 3.5
crowding
9 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.