concentration

noun
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.

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Synonyms & Antonyms for concentration

Synonyms

absorption, attention, engrossment, enthrallment, immersion

Antonyms

inattention

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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.
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Recent Examples on the Web

The tech business has had its share of mishaps and misdeeds over the years, and the concentration of power in certain digital markets is a cause for concern. Bloomberg View, Twin Cities, "Other voices: Don’t declare war on big tech," 7 June 2019 Hydrogen cyanide and nitrogen chemicals were also found in concentrations three to five times higher in marijuana smoke. Mary Emily O'hara, Allure, "Why People With Asthma Can Benefit From Edibles," 20 Apr. 2019 On average, shares are held far longer and in far larger concentrations than is typical. WSJ, "On the Downside of the Index-Fund Panacea," 7 Dec. 2018 Here, researchers fly research planes upwind and downwind of a natural gas field, measuring the difference in methane concentrations. Scott K. Johnson, Ars Technica, "How leaky is natural gas production? One puzzle solved," 2 Nov. 2018 However, the algae was found in high concentrations off some Tampa Bay-area beaches, along with dead fish. Jennifer Kay, The Seattle Times, "Experts: Hurricane Michael failed to end Florida’s red tide," 15 Oct. 2018 Try to avoid oxybenzone (the most common compound found in some 3,500 sunscreens worldwide), octinoxate (which is even more toxic than oxybenzone, but usually found in lower concentrations), and octocrylene. Kari Molvar, Vogue, "Is Your Sunscreen Bad for the Planet? Here’s How to Choose an Ocean-Safe Formula," 14 Aug. 2018 The bacteria that cause it are found in nature, typically in low concentrations. John Wisely, Detroit Free Press, "Ethics charges could hurt fight against Legionnaires' disease," 5 July 2018 Fireworks release nefarious particles such as soot, ash and metals into the atmosphere, and air monitors in the San Joaquin Valley have accordingly detected unsafe spikes in PM concentrations every July 4 evening, the district said. Jordan Cutler-tietjen, sacbee, "Here's the air quality outlook for July 4 and beyond, amid Northern California wildfires," 3 July 2018

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.

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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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Statistics for concentration

Last Updated

11 Jun 2019

Look-up Popularity

Time Traveler for concentration

The first known use of concentration was in 1606

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More Definitions for concentration

concentration

noun

English Language Learners Definition of concentration

: the ability to give your attention or thought to a single object or activity : the ability to concentrate
: the act of giving your attention to a single object or activity
: a large amount of something in one place

concentration

noun
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

concentration

noun
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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