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reciprocal trade agreement

(Encyclopedia)reciprocal trade agreement, international commercial treaty in which two or more nations grant equally advantageous trade concessions to each other. It usually refers to treaties dealing with tariffs....

Open Door

(Encyclopedia)Open Door, maintenance in a certain territory of equal commercial and industrial rights for the nationals of all countries. As a specific policy, it was first advanced by the United States, but it was...

Missouri Compromise

(Encyclopedia)Missouri Compromise, 1820–21, measures passed by the U.S. Congress to end the first of a series of crises concerning the extension of slavery. By 1818, Missouri Territory had gained sufficient popul...

Presley, Elvis

(Encyclopedia)Presley, Elvis (Elvis Aaron Presley), 1935–77, American popular singer, b. Tupelo, Miss. Exposed to gospel music from childhoo...

Surratt, Mary Eugenia

(Encyclopedia)Surratt, Mary Eugenia sərătˈ [key], 1820–65, alleged conspirator in the assassination of Abraham Lincoln, hanged on July 7, 1865. A widow (her maiden name was Jenkins) who had moved from Surratts...

electrodynamics

(Encyclopedia)electrodynamics, study of phenomena associated with charged bodies in motion and varying electric and magnetic fields (see charge; electricity); since a moving charge produces a magnetic field, electr...

cribbage

(Encyclopedia)cribbage krĭbˈĭj [key], card game played by two persons with a deck of 52 cards and a scoring (pegging) device known as a cribbage board. The board contains four rows of 30 holes each (two rows for...

anxiety

(Encyclopedia)anxiety, anticipatory tension or vague dread persisting in the absence of a specific threat. In contrast to fear, which is a realistic reaction to actual danger, anxiety is generally related to an unc...

jerboa

(Encyclopedia)jerboa jərbōˈə [key], name for the small, jumping rodents of the family Dipodidae, found in arid parts of Asia, N Africa, and SE Europe. Jerboas have extremely long hind feet and short forelegs; t...

lipoprotein

(Encyclopedia)lipoprotein lĭpˌəprōˈtēn [key], any organic compound that is composed of both protein and the various fatty substances classed as lipids, including fatty acids and steroids such as cholesterol. ...