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
However, at the concentration that currently exists in public water (less than 0.7 mg/L), the benefits of fluoride in water are enormous.
—
Omer Awan, Forbes.com, 12 Apr. 2025
Human activities, like burning coal, gas and other fossil fuels, are the primary cause of rising greenhouse gas concentrations in the atmosphere.
—Alejandra Borunda, NPR, 11 Apr. 2025
Tatcha and La Roche-Posay offer creamy non-comedogenic formulas, while formulations from iS Clinical and Cetaphil feature low concentrations of the active salicylic acid for a little extra clarifying that doesn’t go overboard.
—Conçetta Ciarlo, Vogue, 11 Apr. 2025
Attorney Cory Leshner also argued that the highest concentration of gunpowder residue was found on McCoy's hands, per the outlet.
—Gabrielle Rockson, People.com, 10 Apr. 2025
See All Example Sentences for concentration
Examples are automatically compiled from online sources to
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
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Omer Awan, Forbes.com, 12 Apr. 2025
Human activities, like burning coal, gas and other fossil fuels, are the primary cause of rising greenhouse gas concentrations in the atmosphere.
—Alejandra Borunda, NPR, 11 Apr. 2025
Tatcha and La Roche-Posay offer creamy non-comedogenic formulas, while formulations from iS Clinical and Cetaphil feature low concentrations of the active salicylic acid for a little extra clarifying that doesn’t go overboard.
—Conçetta Ciarlo, Vogue, 11 Apr. 2025
Attorney Cory Leshner also argued that the highest concentration of gunpowder residue was found on McCoy's hands, per the outlet.
—Gabrielle Rockson, People.com, 10 Apr. 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 20 Apr. 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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