Exhaust

Exhaust, exhaustive, or exhaustion may refer to:

Law

 * Exhaustion of intellectual property rights, limits to intellectual property rights in patent and copyright law
 * Exhaustion doctrine, in patent law
 * Exhaustion doctrine under U.S. law, in patent law
 * Exhaustion of remedies, restrictions on opening a new lawsuit while an original suit is pending

Mathematics

 * Brute-force attack, a cryptanalytic attack, also known as exhaustive key search
 * Collectively exhaustive, in probability and set theory, a collection of sets whose union equals the complete space
 * Exhaustion by compact sets, in analysis, a sequence of compact sets that converges on a given set
 * Method of exhaustion, in geometry, finding the area of a shape by approximating it with polygons
 * Proof by exhaustion, proof by examining all individual cases

Medicine

 * Fatigue, a weariness caused by exertion
 * Adrenal exhaustion or hypoadrenia, a hypothesized maladaption of the adrenal glands
 * Heat exhaustion or hyperthermia, a medical condition where the body is unable to control its accumulation of heat
 * Nervous exhaustion or neurasthenia, a nineteenth-century diagnosis encompassing fatigue, anxiety, and depression

Technology

 * Exhaust, in steam engines, steam released from a cylinder
 * Exhaust brake, a method of slowing diesel engines
 * Exhaust gas, a gas which occurs as a result of combustion of fuel
 * Exhaust manifold, a structure collecting an engine's exhaust outlets
 * Exhaust system, a mechanism for venting exhaust gases from an internal combustion engine
 * Exhaust velocity, a measure of engine efficiency

Other uses

 * Emotional exhaustion
 * Exhaust (band), a clarinet, drum, and tape trio in Montreal, Canada
 * Exhaust (album), the band's 1998 self-titled album
 * Exhaust date, the projected date that a telecommunications area code will have assigned all of its numbers
 * Exhaustive ballot, a multi-round voting system