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Tay-Sachs disease

(Encyclopedia)Tay-Sachs disease tāˈ-săksˈ [key], rare hereditary disease caused by a genetic mutation that leaves the body unable to produce an enzyme necessary for fat metabolism in nerve cells, producing cent...

Reconstruction

(Encyclopedia)Reconstruction, 1865–77, in U.S. history, the period of readjustment following the Civil War. At the end of the Civil War, the defeated South was a ruined land. The physical destruction wrought by t...

commercial law

(Encyclopedia)commercial law, the laws that govern business transactions, except those relating to the maritime transportation of goods (see maritime law). Commercial law developed as a distinct body of jurispruden...

university press

(Encyclopedia)university press, publishing house associated with a university and nearly always bearing the university's name in its imprint. The university press is normally a specialized publishing house emphasiz...

sodium chloride

(Encyclopedia)sodium chloride, NaCl, common salt. Salt is important in many ways. It is an essential part of the diet of both humans and animals and is a part of most animal fluids, such as blood, sweat, and te...

hurricane

(Encyclopedia)CE5 View into the eye of a hurricane showing the structure of the surrounding cloud wall hurricane, tropical cyclone in which winds attain speeds greater than 74 mi (119 km) per hr. Wind speeds gu...

Livingston

(Encyclopedia)Livingston, family of American statesmen, diplomats, and jurists. Edward Livingston,Edward Livingston, 1764–1836, b. Livingston Manor, was the son of Robert R. Livingston (1718–75) and brother o...

Houston

(Encyclopedia)Houston, city (2020 pop. 2,304,580), seat of Harris co., SE Tex., a deepwater port on the Houston Ship Channel; inc. 1837. Harrisburg (now part of Hou...

coal

(Encyclopedia)coal, fuel substance of plant origin, largely or almost entirely composed of carbon with varying amounts of mineral matter. Coal is found in beds or seams interstratified with shales, clays, sands...

Monroe, James

(Encyclopedia)Monroe, James, 1758–1831, 5th President of the United States (1817–25), b. Westmoreland co., Va. In 1816 Monroe obtained the presidential nomination and was easily elected. During his first admi...