Concentration (disambiguation)

Concentration may refer to:

Science, engineering and technology

Concentration: A measure (used in science, engineering, technology and general common usage) of how much of a given substance there is in a given mixture of substances.
Concentration (chemistry): A measure of the amount of a substance (measured in units of mole) present in a given volume of reference (usually measured in units of litres or cubic metres).
Mass concentration (geophysics: A region of a planet or moon's crust that is denser than average.

Market concentration: The number and production share of firms in a market (or industry).
Concentration ratio: An indicator of the relative size of business firms in relation to the pertinent industry as a whole.

Concentration (geography): The geographic location of a specific cluster or dense group of ethnic people, types of buildings, types of natural features (such as mountains, lakes, or forests), etc.
Concentration (military): The bringing together of military forces.
Concentration (psychology):
Concentration (cognitive): Intense mental focus.
Concentration (politics):
Concentration (game): A card game.
Concentration camp A camp where civilians, enemy aliens, political prisoners, and sometimes unwanted ethnic groups are detained and confined under extremely harsh conditions (including the murder of the camp inhabitants as during the Holocaust in Nazi Germany).

This disambiguation page lists articles associated with the same or a similar title.