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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.

Synonyms

Example Sentences

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 In Prince George's County, Maryland, where there's a high concentration of poverty, at least 8 percent of the public school district's teacher slots are vacant, more than twice as many as last year, according to the teachers union. Gabe Cohen, CNN, 31 Aug. 2022 Cook County is the largest concentration of American descendants of slaves left in America. Darcel Rockett, Chicago Tribune, 22 Aug. 2022 Noe-Hays said there is no necessary concentration of nutrients for urine to be used as fertilizer. Keely Larson, Ars Technica, 20 Aug. 2022 Up until now, the focus of festivals with regard to climate change has been extremely long-term, with a concentration on reducing energy use and waste and limiting an event’s carbon footprint. Scott Roxborough, The Hollywood Reporter, 29 Aug. 2022 Believed to shelter the largest concentration of petrified wood on the planet, Petrified Forest delivers scenic and scientific wonders in equal measures. Roger Naylor, The Arizona Republic, 22 Aug. 2022 In fact, Na+ is at a much higher concentration outside the membrane than inside. Gabriel A. Silva, Forbes, 18 Aug. 2022 The Dothan Area Chamber of Commerce said the new jobs at the Dothan facility will permit APS to enhance the focus on its medical product line, with a concentration on human and animal health markets. Paul Gattis | Pgattis@al.com, al, 9 Aug. 2022 Among its insights: • Even at the lowest concentration measurable in a lab, SARS-CoV-2 virus established a beachhead in the throats of just over half of the young, healthy subjects within two days. Melissa Healy, Los Angeles Times, 30 June 2022 See More

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

Phrases Containing concentration

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