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. 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) c
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

/ kŏn′sən-trā′shən /

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

Other Words From

• hyper·concen·tration noun
• noncon·cen·tration noun
• over·concen·tration noun
• precon·cen·tration noun

Word History and Origins

Origin of concentration¹

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

Related Words

• absorption
• combination
• consolidation