Concentration (disambiguation)

Concentration can refer to:

Science, engineering, and technology

 * Concentration, in chemistry, the measure of how much of a given substance there is mixed with another substance
 * Mass concentration (astronomy), a region of a planet or moon's crust that is denser than average
 * Number density in physics, chemistry, and astronomy

Entertainment

 * Concentration (card game), the card game
 * Concentration (game show), American television game show
 * Concentration (album), an album by Machines of Loving Grace
 * Concentration 20, an album by Namie Amuro

Psychology

 * Attentional control, the cognitive process of controlling the focus of attention

Religion

 * Samadhi (Buddhism), mental concentration in Buddhism

Economics

 * Market concentration, in economics, the number and production share of firms in a market (or industry)
 * Concentration ratio, in economics, a measure of market concentration.

Other uses

 * Concentration camp, a detention center created for specific groups of people, usually during wartime
 * A term used at Brown University, Colgate University, Columbia University, Harvard College, and Saint Olaf College to refer to a type of academic major
 * Force concentration, and concentrate, in military tactics, the practice of concentrating military units