concentration

[ kon-suhn-trey-shuhn ]
See synonyms for concentration on Thesaurus.com
noun
  1. the act of concentrating; the state of being concentrated.

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

  1. something concentrated: a concentration of stars.

  2. Military.

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

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

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

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

  5. 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.

Origin of concentration

1
First recorded in 1625–35; concentr(ic) + -ation

Other words from concentration

  • 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

Words Nearby concentration

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use concentration in a sentence

British Dictionary definitions for concentration

concentration

/ (ˌkɒnsənˈtreɪʃən) /


noun
  1. intense mental application; complete attention

  2. the act or process of concentrating

  1. something that is concentrated

  2. 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): Symbol: c

  3. the process of increasing the concentration of a solution

  4. military

    • the act of bringing together military forces

    • the application of fire from a number of weapons against a target

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

  6. another name (esp US) for Pelmanism

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for concentration

concentration

[ kŏn′sən-trāshən ]


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

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.