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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 ...

free port

(Encyclopedia) free port, port, or section of a port, exempt from customs regulations (see tariff ). Goods may be landed at a free port for storage and handling, and they may even be processed into manu...

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 phys...

free trade

(Encyclopedia) free trade, in modern usage, trade or commerce carried on without such restrictions as import duties, export bounties, domestic production subsidies, trade quotas, or import licenses. The basic...

Free State

(Encyclopedia) Free State, formerly Orange Free State, province (2011 pop. 2,745,590), 50,126 sq mi (129,825 sq km), E central South Africa . It was renamed Free State shortly after the 1994 post-aparth...

free verse

(Encyclopedia) free verse, term loosely used for rhymed or unrhymed verse made free of conventional and traditional limitations and restrictions in regard to metrical structure. Cadence, especially that of co...

free will

(Encyclopedia) free will, in philosophy, the doctrine that an individual, regardless of forces external to him, can and does choose at least some of his actions. The existence of free will is challenged by ...

free silver

(Encyclopedia) free silver, in U.S. history, term designating the political movement for the unlimited coinage of silver. Origins of the Movement Free silver became a popular issue soon aft...

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...