concentration
Americannoun
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the act of concentrating; the state of being concentrated.
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exclusive attention to one object; close mental application.
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something concentrated.
a concentration of stars.
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Military.
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the assembling of military or naval forces in a particular area in preparation for further operations.
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a specified intensity and duration of artillery fire placed on a small area.
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the focusing of a student's academic program on advanced study in a specific subject or field.
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Chemistry. (in a solution) a measure of the amount of dissolved substance contained per unit of volume.
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Also called memory. Cards. a game in which all 52 cards are spread out face down on the table and each player in turn exposes two cards at a time and replaces them face down if they do not constitute a pair, the object being to take the most pairs by remembering the location of the cards previously exposed.
noun
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intense mental application; complete attention
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the act or process of concentrating
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something that is concentrated
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c. the strength of a solution, esp the amount of dissolved substance in a given volume of solvent, usually expressed in moles per cubic metre or cubic decimetre (litre)
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the process of increasing the concentration of a solution
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military
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the act of bringing together military forces
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the application of fire from a number of weapons against a target
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economics the degree to which the output or employment in an industry is accounted for by only a few firms
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another name (esp US) for Pelmanism
Other Word Forms
- hyperconcentration noun
- nonconcentration noun
- overconcentration noun
- preconcentration noun
Etymology
Origin of concentration
First recorded in 1625–35; concentr(ic) + -ation
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The Greater Los Angeles area is home to the largest concentration of people of Iranian descent outside Iran.
From Los Angeles Times
The feud is unfolding in one of America’s most spectacular corners, a box canyon beneath a concentration of 13,000- and 14,000-foot peaks.
Back in New Jersey, Venkatesh Chinni, a postdoctoral scholar and lead author of the study, measured iron concentrations in the samples, analyzing both dissolved iron and iron attached to suspended particles.
From Science Daily
When discussing the revenue-weighting factor, Kalivas said: “I think a lot of people have moved there because it has a bit more exposure to the Magnificent Seven, but it reduces concentration risk.”
From MarketWatch
During periods of elevated concentration, most stocks should be negatively correlated with the largest stocks — that is, they should fall when the largest stocks rise, and rise when the largest stocks fall.
From MarketWatch
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
