the act of concentrating; the state of being concentrated.
exclusive attention to one object; close mental application.
something concentrated: a concentration of stars.
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.
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.
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
the process of increasing the concentration of a solution
military
the act of bringing together military forces
the application of fire from a number of weapons against a target
economicsthe degree to which the output or employment in an industry is accounted for by only a few firms
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.
