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Le Châtelier's principle

(Encyclopedia)Le Châtelier's principle, chemical principle that states that if a system in equilibrium is disturbed by changes in determining factors, such as temperature, pressure, and concentration of components...

acupuncture

(Encyclopedia)CE5 Acupuncture points for treating diseases of the large intestine. acupuncture ăkˈyo͝opŭngˌchər [key], technique of traditional Chinese medicine, in which a number of very fine metal needl...

Abreu, José Antonio

(Encyclopedia)Abreu, José Antonio, 1939–2018, Venezuelan music educator, economist, and politician. With degrees in petroleum economics and in organ and composition, Abreu was an economics professor at various V...

Robbins, Lionel Charles

(Encyclopedia)Robbins, Lionel Charles, 1898–1984, British economist, b. Middlesex, England. A professor at the London School of Economics (1929–61), he wrote the well-known methodological treatise, An Essay in ...

axiom

(Encyclopedia)axiom, in mathematics and logic, general statement accepted without proof as the basis for logically deducing other statements (theorems). Examples of axioms used widely in mathematics are those relat...

turnpike

(Encyclopedia)turnpike, road paid for partly or wholly by fees collected from travelers at tollgates. It derives its name from the hinged bar that prevented passage through such a gate until the toll was paid. See ...

Burlington Northern Santa Fe Railway

(Encyclopedia)Burlington Northern Santa Fe Railway, railroad system in much of the United States (except the Northeast) and in S Canada, created in 1995 from the merger of Burlington Northern Inc. and the Santa Fe ...

trusteeship, territorial

(Encyclopedia)trusteeship, territorial, system of UN control for territories that were not self-governing. It replaced the mandates of the League of Nations. Provided for under chapters 12 and 13 of the Charter of ...

entropy

(Encyclopedia)entropy ĕnˈtrəpē [key], quantity specifying the amount of disorder or randomness in a system bearing energy or information. Originally defined in thermodynamics in terms of heat and temperature, e...

kilogram

(Encyclopedia)kilogram, abbr. kg, fundamental unit of mass in the metric system, defined as the mass of the International Prototype Kilogram, a platinum-iridium cylinder kept at Sèvres, France, near Paris. Copies ...