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. See More
Recent Examples on the Web Ingredients and concentration: Undiluted, 100% tea tree oil is potent and requires the use of a carrier oil or other product to dilute it. Sherri Gordon, Verywell Health, 16 Feb. 2024 The study of Americans examined urine samples between 2017 and 2023, and found the number of participants with concentrations of chlormequat in their urine increased by more than 20% during that time frame from 69% in 2017 to 90% in 2023, suggesting consumer exposure is on the rise. Arianna Johnson, Forbes, 16 Feb. 2024 This intensity of devotion and artistic inspiration are on full display in the movie, but the sense of creative fire, of intense concentration and introspection, doesn’t carry over to the way that the musicians are filmed. Richard Brody, The New Yorker, 15 Feb. 2024 Our testing proved its effectiveness with concentrations of volatile organic compounds (VOCs) reading even lower than the baseline after running it for 30 minutes post-contamination. Kelsey Kunik, Parents, 15 Feb. 2024 Scorpio October 23 – November 21 Working through a home or family problem could currently require your focused concentration. Tarot.com, Baltimore Sun, 10 Feb. 2024 For the week ending Jan. 20, the most recent data available, viral wastewater concentrations were at 64% of the peak recorded last winter. Rong-Gong Lin Ii, Los Angeles Times, 7 Feb. 2024 The list, which also included Houston ISD, Austin ISD and San Antonio’s Northside ISD, noted that all 24 districts had heavy concentrations of campuses where enrollment dropped by 20% or more between the 2019-20 and 2021-22 school years. Silas Allen, Fort Worth Star-Telegram, 7 Feb. 2024 Topaz is the Company's flagship, having been drilled and flowing a remarkably high helium concentration of 10.5%. Sacramento Bee, 5 Feb. 2024 See More

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 25 Feb. 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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