concentration
noun
con·cen·tra·tion
ˌkän(t)-sən-ˈtrā-shən 
-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 party was especially popular in the West and South, appealing to farmers by objecting to the concentration of wealth and economic power.
—
Joseph Thorndike, Forbes.com, 21 July 2025
Ranking focused on mean household income, a choice that typically emphasizes the concentration of wealth rather than median income, which can be substantially lower and less influenced by outliers.
—Jordan King, MSNBC Newsweek, 20 July 2025
The concentration of crime must also be addressed by a more saturated approach in terms of policing.
—Wamara Mwine, Baltimore Sun, 20 July 2025
And once it is used, Feigenbaum says there is no way to know the concentration of the toxin.
—Emilie Le Beau Lucchesi, Discover Magazine, 17 July 2025
See All Example Sentences for concentration
Examples are automatically compiled from online sources to
show current usage.
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
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Joseph Thorndike, Forbes.com, 21 July 2025
Ranking focused on mean household income, a choice that typically emphasizes the concentration of wealth rather than median income, which can be substantially lower and less influenced by outliers.
—Jordan King, MSNBC Newsweek, 20 July 2025
The concentration of crime must also be addressed by a more saturated approach in terms of policing.
—Wamara Mwine, Baltimore Sun, 20 July 2025
And once it is used, Feigenbaum says there is no way to know the concentration of the toxin.
—Emilie Le Beau Lucchesi, Discover Magazine, 17 July 2025
See All Example Sentences for concentration
Cite this Entry
“Concentration.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/concentration. Accessed 29 Jul. 2025.
Copy CitationKids Definition
concentration
noun
con·cen·tra·tion
ˌkän(t)-sən-ˈtrā-shən
-sen-
1
: the act or process of concentrating : the state of being concentrated
especially
: direction of attention on a single object
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-
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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