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sword

(Encyclopedia)sword, weapon of offense and defense in personal combat, consisting of a blade with a sharp point and one or two cutting edges, set in a hilt with a handle protected by a metal case or cross guard. Th...

Bent's Fort

(Encyclopedia)Bent's Fort, trading post of the American West, on the Arkansas River in present-day SE Colorado, E of Rocky Ford and La Junta and several miles above the mouth of the Purgatoire. The trading company ...

workers' compensation

(Encyclopedia)workers' compensation, payment by employers for some part of the cost of injuries, or in some cases of occupational diseases, received by employees in the course of their work. The degree of responsib...

vortex

(Encyclopedia)vortex vôrˈtĕks [key], mass of fluid in whirling or rotary motion. To simplify the analysis, vortex motion usually describes motions in a frictionless fluid. In such cases the absence of friction w...

West Nile virus

(Encyclopedia)West Nile virus, microorganism and the infection resulting from it, which typically produces no symptoms or a flulike condition. The virus is a flavivirus and is related to a number of viruses that ca...

bookbinding

(Encyclopedia)bookbinding. The art and business of bookbinding began with the protection of parchment manuscripts with boards. Papyrus had originally been produced in rolls, but sheets of parchment came to be folde...

Russian language

(Encyclopedia)Russian language, also called Great Russian, member of the East Slavic group of the Slavic subfamily of the Indo-European family of languages (see Slavic languages). The principal language of administ...

tapeworm

(Encyclopedia)tapeworm, name for the parasitic flatworms forming the class Cestoda. All tapeworms spend the adult phase of their lives as parasites in the gut of a vertebrate animal (called the primary host). Most ...

grammar

(Encyclopedia)grammar, description of the structure of a language, consisting of the sounds (see phonology); the meaningful combinations of these sounds into words or parts of words, called morphemes; and the arran...

treaty

(Encyclopedia)treaty, in international law, formal agreement between sovereign states or organizations of states. The term treaty is ordinarily confined to important formal agreements, while less formal internation...