concentration

noun

con·​cen·​tra·​tion ˌkän(t)-sən-ˈtrā-shən How to pronounce concentration (audio)
-ˌsen-
1
a
: 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.

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.
Recent Examples on the Web The 2,400 students arriving at the Milwaukee Public Schools World Fair, held Thursday at the Baird Center, spoke 35 languages and came from 17 schools with the highest concentrations of immigrants and refugees in MPS. Sophie Carson, Journal Sentinel, 12 Apr. 2024 Oxygen levels around 20% — about the same concentration as in Earth’s atmosphere — have been measured deep inside some of Berkeley’s gas wells, indicating a leak or malfunction, according to the air district. Tony Briscoe, Los Angeles Times, 11 Apr. 2024 Stellar nurseries with large concentrations of dust and gas eventually condense, forming a stellar core or baby star. Laura Baisas, Popular Science, 11 Apr. 2024 Related article How to limit PFAS in your drinking water and food, according to experts Seidel believes the utilities with high PFAS concentrations should address the problem, but the health benefit may not be as signficant for facilities with lower concentrations. Jen Christensen, CNN, 10 Apr. 2024 Dotted along the two-mile stretch between Atlantic and Ocean Avenues sits the largest concentration of mid-century motels in the country. Lindsay Cohn, Travel + Leisure, 6 Apr. 2024 The cedar pollen concentration in spring 2023 reached a 10-year high in some parts of Japan. Michelle Lee, Washington Post, 4 Apr. 2024 But even with the settlements, there has been contention over the high concentration of factory farms in Kewaunee, and the growing number of private wells impacted by nitrate. Laura Schulte, Journal Sentinel, 3 Apr. 2024 Zhao was found to be chronically poisoned, with the mercury concentration in his body exceeding 10 times the safe level, the report said. Nectar Gan, CNN, 3 Apr. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'concentration.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

see concentrate entry 1

First Known Use

1606, in the meaning defined at sense 2

Time Traveler
The first known use of concentration was in 1606

Dictionary Entries Near concentration

Cite this Entry

“Concentration.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/concentration. Accessed 24 Apr. 2024.

Kids Definition

concentration

noun
con·​cen·​tra·​tion ˌkän(t)-sən-ˈtrā-shən How to pronounce concentration (audio)
-sen-
1
: the act or process of concentrating : the state of being concentrated
especially : direction of attention on a single object
don't disturb my concentration
2
: a concentrated mass
3
: the amount of an ingredient or part in relation to that of others : strength
the concentration of salt in a solution

Medical Definition

concentration

noun
con·​cen·​tra·​tion ˌkän(t)-sən-ˈtrā-shən, -ˌsen- How to pronounce concentration (audio)
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
Last Updated: - Updated example sentences
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