Concentration (disambiguation)

From Citizendium, the Citizens' Compendium

Concentration may refer to:

Science, engineering and technology

• Concentration [r]: In science, engineering and in general common usage: the measure of how much of a given substance there is in a given mixture of substances. [e]

• Mass concentration (geophysics) [r]: Add brief definition or description: A region of a planet or moon's crust that is denser than average.

Economics

• Market concentration [r]: Add brief definition or description: The number and production share of firms in a market (or industry).
• Concentration ratio [r]: Add brief definition or description: An indicator of the relative size of business firms in relation to the pertinent industry as a whole.

Others

• Concentration (geography) [r]: Add brief definition or description: 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) [r]: Add brief definition or description: The bringing together of military forces.
• Concentration (psychology) [r]: Add brief definition or description:
• Concentration (cognitive) [r]: Add brief definition or description: Intense mental focus.
• Concentration (politics) [r]: Add brief definition or description:
• Concentration (game) [r]: Add brief definition or description: A card game.
• Concentration camp [r]: Add brief definition or description 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 detainees as during the Holocaust in Nazi Germany).