[kon-suh n-trey-shuh n] /ˌkɒn sənˈtreɪ ʃən/
the act of concentrating; the state of being concentrated.
exclusive attention to one object; close mental application.
a concentration of stars.
the focusing of a student’s academic program on advanced study in a specific subject or field.
Chemistry. (in a solution) a measure of the amount of dissolved substance contained per unit of volume.
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.
intense mental application; complete attention
the act or process of concentrating
something that is concentrated
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
the process of increasing the concentration of a solution
(economics) the degree to which the output or employment in an industry is accounted for by only a few firms
another name (esp US) for Pelmanism
1630s, “action of bringing to a center,” noun of action from verb concentrate (v.). Meaning “a mass so collected” is from 1670s; “continuous focus of mental activity” is from 1846.
concentration con·cen·tra·tion (kŏn’sən-trā’shən)
The amount of a particular substance in a given amount of another substance, especially a solution or mixture.
noun 1. a guarded compound for the detention or imprisonment of aliens, members of ethnic minorities, political opponents, etc., especially any of the camps established by the Nazis prior to and during World War II for the confinement and persecution of prisoners. noun 1. a guarded prison camp in which nonmilitary prisoners are held, esp […]
noun, Physical Chemistry. 1. a galvanic cell consisting of two electrodes of the same metal each in different concentrations of a solution of the same salt of that metal.
noun, Chemistry. 1. the gradual difference in concentration of a dissolved substance in a solution between a region of high density and one of lower density.
[kon-suh n-treyt] /ˈkɒn sənˌtreɪt/ verb (used with object), concentrated, concentrating. 1. to bring or draw to a common center or point of union; converge; direct toward one point; focus: to concentrate one’s attention on a problem; to concentrate the rays of the sun with a lens. 2. to put or bring into a single place, […]