concentration

American  

[kon-suhn-trey-shuhn] / ˌkɒn sənˈtreɪ ʃən /

noun

1. the act of concentrating; the state of being concentrated.

2. exclusive attention to one object; close mental application.

3. something concentrated.

   a concentration of stars.

4. Military.

   1. the assembling of military or naval forces in a particular area in preparation for further operations.

   2. a specified intensity and duration of artillery fire placed on a small area.

5. the focusing of a student's academic program on advanced study in a specific subject or field.

6. Chemistry.  (in a solution) a measure of the amount of dissolved substance contained per unit of volume.

7. 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.

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concentration British  

/ ˌkɒnsənˈtreɪʃən /

noun

1. intense mental application; complete attention

2. the act or process of concentrating

3. something that is concentrated

4.  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)

5. the process of increasing the concentration of a solution

6. military

   1. the act of bringing together military forces

   2. the application of fire from a number of weapons against a target

7. economics the degree to which the output or employment in an industry is accounted for by only a few firms

8. another name (esp US) for Pelmanism

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concentration Scientific  

/ kŏn′sən-trā′shən /

1. The amount of a particular substance in a given amount of another substance, especially a solution or mixture.

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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

One big factor that supports the idea of leadership rotation is investor unease around some of the biggest themes — the artificial-intelligence trade, the “Magnificent Seven” group of megacap tech stocks and market concentration.

From MarketWatch

“When the concentration gets very high, there is a lot more scrutiny on that specific name or sector,” he says.

From The Wall Street Journal

Their findings showed that fructose intake, unlike glucose, led to higher concentrations of Toll-like receptor 2 in monocytes.

From Science Daily

The vessel is ice-strengthened to navigate certain types and concentrations of ice, but it isn’t an icebreaker.

From The Wall Street Journal

He later learned from relatives that all four of his grandparents had been Jewish, and that they had died in Nazi concentration camps.

From BBC

Related Words

• absorption
• combination
• consolidation