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trade union

(Encyclopedia)trade union: see union, labor.

free association

(Encyclopedia)free association: see association; psychoanalysis. ...

free energy

(Encyclopedia)free energy or Gibbs free energy, quantity derived from the relationships between heat and work studied in thermodynamics and used as a measure of the relative stability of a physical or chemical syst...

free fall

(Encyclopedia)free fall, in physics, the state of a body moving solely under the influence of gravitational forces (see gravitation). A body falling freely toward the surface of the earth undergoes an acceleration ...

free radical

(Encyclopedia)free radical, in chemistry, a molecule or atom that contains an unpaired electron but is neither positively nor negatively charged. Free radicals are usually highly reactive and unstable. They are pro...

tariff

(Encyclopedia)tariff, tax on imported and, more rarely, exported goods. It is also called a customs duty. Tariffs may be distinguished from other taxes in that their predominant purpose is not financial but economi...

Brčko

(Encyclopedia)Brčko, internationally supervised self-governing district, NE Bosnia and Herzegovina on the Sava River, part of both the Federation of Bosnia and ...

European Monetary Agreement

(Encyclopedia)European Monetary Agreement (EMA), international governmental facility (1958–72) for the settlement of balance of payments accounts between member states. The EMA, which was administered by the Orga...

North West

(Encyclopedia)North West, province (2011 pop. 3,509,953), 40,495 sq mi (104,882 sq km), N central South Africa. In 1994, under South Africa's post-apartheid constitution, North West was created from parts of the fo...

North Kingstown

(Encyclopedia)North Kingstown kĭngˈstən, kĭngzˈtounˌ [key], town (1990 pop. 23,786), Washington co., S central R.I., on Narragansett Bay; inc. 1674 as Kings Towne, divided 1723 into North Kingstown and South ...