con·​cen·​tra·​tion | \ ˌkän(t)-sən-ˈtrā-shən How to pronounce concentration (audio) , -ˌsen- \

Definition of concentration

1a : the act or process of concentrating : the state of being concentrated especially : direction of attention to a single object All that noise is disturbing my concentration.
b : an academic major or area of focus within a major The student chose law as his concentration.
2 : a concentrated mass or thing a concentration of wealth in the merchant class
3 : the amount of a component in a given area or volume The ozone concentration in the lower stratosphere has declined.

Synonyms & Antonyms for concentration



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Examples of concentration in a Sentence

All that noise is disturbing my concentration. The job required her full concentration. When you're tired it's easy to lose your concentration. There was a concentration on ethics within the agency. There is a concentration of wealth in the cities. He objects to the concentration of power in the hands of a few rich men. See More
Recent Examples on the Web Moving up from there, some winemakers have dedicated parts of prized vineyards or precious old vines to rosé, delivering concentration, complexity and minerality. Sara L. Schneider, Robb Report, 13 May 2022 And yet the concentration of corporate ownership positions held by a relatively small number of massive investment funds, particularly (but not only) the indexers, has drawn comparatively little criticism from the same quarters. Andrew Stuttaford, National Review, 7 May 2022 We at Vermont Organic Science are dedicated to providing high-concentration, high-quality goods for our customers. The Salt Lake Tribune, 21 Apr. 2022 Indeed, during World War II and in its aftermath, the area and its surroundings may well have housed the highest concentration of émigré intellectuals and artists — mostly exiles from Nazi Germany — in the world. Los Angeles Times, 14 Apr. 2022 Extended concentration on a specific activity, as reflected in the use of a specific business application or the time devoted to a specific project, is generally considered to be a productive use of time. Mark Settle, Forbes, 12 Apr. 2022 In Duxbury, Kingston and Plymouth Bays, there are 50 oyster farms — the largest concentration in the state, worth $5.1 million last year, according to the Massachusetts Seafood Collaborative. Jennifer Mcdermott, ajc, 9 Apr. 2022 In Duxbury, Kingston and Plymouth Bays, there are 50 oyster farms — the largest concentration in the state, worth $5.1 million last year, according to the Massachusetts Seafood Collaborative. Jennifer Mcdermott,, 9 Apr. 2022 The concentration of power in the hands of the Rajapaksa family — which also controls the post of prime minister and three other Cabinet seats — also drew the ire of protesters. Time, 3 Apr. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'concentration.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of concentration

1606, in the meaning defined at sense 2

History and Etymology for concentration

see concentrate entry 1

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Time Traveler for concentration

Time Traveler

The first known use of concentration was in 1606

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Dictionary Entries Near concentration

concentrate the/your mind


concentration camp

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Statistics for concentration

Last Updated

18 May 2022

Cite this Entry

“Concentration.” Dictionary, Merriam-Webster, Accessed 27 May. 2022.

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More Definitions for concentration


con·​cen·​tra·​tion | \ ˌkän-sən-ˈtrā-shən How to pronounce concentration (audio) \

Kids Definition of concentration

1 : close attention to or thought about a subject There is a concentration on math in the curriculum.
2 : the ability to pay close attention I lost my concentration when an ambulance drove past.
3 : a large amount of something or a large number of people in one place


con·​cen·​tra·​tion | \ ˌkän(t)-sən-ˈtrā-shən, -ˌsen- How to pronounce concentration (audio) \

Medical Definition of concentration

1 : the act or action of concentrating: as
a : a directing of the attention or of the mental faculties toward a single object
b : an increasing of strength (as of a solute or a gas in a mixture) or a purifying by partial or total removal of diluents, solvents, admixed gases, extraneous material, or waste (as by evaporation or diffusion)
2 : a crude active principle of a vegetable especially for pharmaceutical use in the form of a powder or resin
3 : the relative content of a component (as dissolved or dispersed material) of a solution, mixture, or dispersion that may be expressed in percentage by weight or by volume, in parts per million, or in grams per liter


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