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insurance

(Encyclopedia)insurance or assurance, device for indemnifying or guaranteeing an individual against loss. Reimbursement is made from a fund to which many individuals exposed to the same risk have contributed certai...

Assyria

(Encyclopedia)CE5 Assyrian Empire (c.650 b.c.) Assyria əsĭrˈēə [key], ancient empire of W Asia. It developed around the city of Ashur, or Assur, on the upper Tigris River and south of the later capital, Ni...

laser

(Encyclopedia)CE5 Ordinary light sources produce incoherent light, while a laser produces a beam of coherent light. laser [acronym for light amplification by stimulated emission of radiation], device for the cr...

Sahara

(Encyclopedia)Sahara səhârˈə [key] [Arab.,=desert], world's largest desert, c.3,500,000 sq mi (9,065,000 sq km), N Africa; the western part of a great arid zone that continues into SW Asia. Extending more than ...

Bismarck, Otto von

(Encyclopedia)Bismarck, Otto von bĭzˈmärk, Ger. ôˈtō fən bĭsˈmärk [key], 1815–98, German statesman, known as the Iron Chancellor. The Bismarckian era closed with the death of Emperor Frederick III. A ...

dinosaur

(Encyclopedia)dinosaur dīˈnəsôr [key] [Gr., = terrible lizard], extinct land reptile of the Mesozoic era. The dinosaurs, which were egg-laying animals, ranged in length from 21⁄2 ft (91 cm) to about 127 f...

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 argume...

hydrogen

(Encyclopedia)hydrogen hīˈdrəjən [key] [Gr.,=water forming], gaseous chemical element; symbol H; at. no. 1; interval in which at. wt. ranges 1.00784–1.00811; m.p. −259.14℃; b.p. −252.87℃; density 0.08...

embryo

(Encyclopedia)CE5 Development of the human embryo embryo ĕmˈbrēō [key], name for the developing young of an animal or plant. In its widest definition, the embryo is the young from the moment of fertilizatio...

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