concentration

[kon-suhn-trey-shuhn]

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.

concentration

/ 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

concentration

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

Other Word Forms

• hyperconcentration noun
• nonconcentration noun
• overconcentration noun
• preconcentration noun

Word History and Origins

Origin of concentration¹

First recorded in 1625–35; concentr(ic) + -ation

Example Sentences

Kansas City, Memphis and Ogden, Utah, have relatively high concentrations of federal employees in their workforces.

Read more on The Wall Street Journal

Interestingly, J0107a’s bar structure has a very high concentration of gas, meaning more gas can flow to the centre at an epic rate, yielding more star formation.

Read more on Space Scoop

“The megacap strength was evident in rising market concentration, with the top 10 stocks surpassing 40% of S&P 500 market cap for the first time since at least 1972,” they wrote.

Read more on MarketWatch

Few places have a rich concentration of the most sought-after rare earths.

Read more on The Wall Street Journal

This is the highest level of concentration for the S&P 500 since at least 1972, according to analysts at Ned Davis Research.

Read more on MarketWatch

Related Words

• absorption 
• combination 
• consolidation