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Lazarus, Fred, Jr. ... lead processing
Lazarus, Fred, Jr.
American merchandiser who parlayed his family's small but successful department store into a $1.3 billion holding company known as Federated Department Stores.
Lazarus, Moritz
Jewish philosopher and psychologist, a leading opponent of anti-Semitism in his time and a founder of comparative psychology.
Lazear, Jesse William
American physician and member of the commission that proved that the infectious agent of yellow fever is transmitted by a mosquito, later known as Aedes aegypti.
Lazio
regione, west-central Italy, fronting the Tyrrhenian Sea and comprising the provinces of Roma, Frosinone, Latina, Rieti, and Viterbo. In the east Lazio is dominated by the Reatini, Sabini, Simbruini, and Ernici ranges of the central Apennines, rising to 7,270 feet ...
lazulite
phosphate mineral, a basic magnesium and aluminum phosphate [MgAl2 (PO4)2(OH)2], that often occurs as blue, glassy crystals, grains, or masses in granite pegmatites, aluminous metamorphic rocks and quartzites, and quartz veins. It is found in Werfen, Austria; Vastara, Sweden; Mocalno, ...
lazurite
blue variety of the mineral sodalite (q.v.) that is responsible for the colour of lapis lazuli.
lazzo
improvised comic dialogue or action in the commedia dell'arte. The word may have derived from lacci (Italian: "connecting link"), comic interludes performed by the character Arlecchino (Harlequin) between scenes, but is more likely a derivation of le azioni ("actions"). Lazzi ...
LBK culture
Neolithic culture that expanded over large areas of Europe north and west of the Danube River (from Slovakia to the Netherlands) about the 5th millennium BC. Farmers probably practiced a form of shifting cultivation on the loess soil. Emmer wheat ...
Le Bel, Joseph-Achille
French chemist whose explanation of why some organic compounds rotate the plane of polarized light helped to advance stereochemistry.
Le Bon, Gustave
French social psychologist best known for his study of the psychological characteristics of crowds.
Le Brun, Charles
painter and designer who became the arbiter of artistic production in France during the last half of the 17th century. Possessing both technical facility and the capacity to organize and carry out many vast projects, Le Brun personally created or ...
le Carre, John
English writer of suspenseful, realistic spy novels based on a wide knowledge of international espionage.
Le Chapelier, Jean
also called Isaac Le Chapelier French Revolutionary leader who in 1791 introduced in the National Assembly the Loi ("Law") Le Chapelier, which made any association of workers or of employers illegal. In force until 1884, the law actually affected only ...
Le Chatelier, Henry-Louis
French chemist who is best known for the principle of Le Chatelier, which makes it possible to predict the effect a change of conditions (temperature, pressure, and concentration of reaction components) will have on a chemical reaction. This principle proved ...
Le Creusot
industrial town, Saone-et-Loire departement, Bourgogne region, east-central France. It is located about 40 miles (65 km) southwest of Dijon. In 1782 a foundry and blast furnaces, using coal instead of wood for the first time in France, were built at ...
Le Duan
Vietnamese communist politician.
Le Duc Tho
Vietnamese politician and corecipient in 1973 (with Henry Kissinger) of the Nobel Prize for Peace, which he declined.
Le Fanu, Sheridan
Irish writer of ghost stories and mystery novels, celebrated for his ability to evoke the ominous atmosphere of a haunted house.
Le Gallienne, Eva
actress, director, and producer, one of the outstanding figures of the 20th-century American stage.
Le Guin, Ursula K.
American writer best known for tales of science fiction and fantasy imbued with concern for character development and language.
Le Havre
seaport and town, Seine-Maritime departement, Haute-Normandie region, northern France. It is on the English Channel coast and on the right bank of the Seine estuary, 134 miles (216 km) west-northwest of Paris and 53 miles (85 km) west of Rouen ...
Le Jeune, Claude
French composer known for his psalm settings and for his musique mesuree, a style reflecting the long and short syllables of classical prosody.
Le Loi
also called Binh Dinh Vuong, or Thuan Thien, reign title Le Thai To Vietnamese general and emperor who won back independence for Vietnam from China in 1428, founded the Later Le dynasty (q.v.), and became the most honoured Vietnamese hero ...
Le Macon, Robert
chancellor of France, a leading adviser of Charles VII of France, and a supporter of Joan of Arc.
Le Maistre de Sacy, Isaac-Louis
important figure in the Jansenist religious movement in France, a member of the Arnauld family (q.v.).
Le Maistre, Antoine
important figure in the Jansenist religious movement in France, a member of the Arnauld family (q.v.).
Le Mans
town, capital of Sarthe departement, Pays de la Loire region, northwestern France. Situated in the former province of Maine, the town lies southwest of Chartres at the confluence of the Sarthe and Huisne rivers.
Le Mans Grand Prix d'Endurance
probably the world's best-known automobile race, run annually (with few exceptions) since 1923 at the Sarthe road-racing circuit, near Le Mans, France. Since 1928 the winner has been the car that travels the greatest distance in a 24-hour time period. ...
Le Moustier
paleoanthropological and archaeological site in the Dordogne region of southwestern France that has yielded important Neanderthal remains. In the 1860s the upper cave in the cliff face at Le Moustier yielded a rich assemblage of stone tools from the Paleolithic ...
Le Nain, Antoine, Louis, and Mathieu
three brothers whose paintings of peasant life have a realism unique in 17th-century French art.
Le Notre, Andre
one of the greatest French landscape architects, his masterpiece being the gardens of Versailles.
Le Pautre, Antoine
French Baroque architect.
Le Pen, Jean-Marie
French nationalist whose National Front political party represented the main right-wing opposition to the country's mainstream conservative parties from the 1970s through the turn of the 21st century. A controversial figure who was a four-time presidential candidate, Le Pen was ...
Le Petit-Quevilly
town, southwest suburb of Rouen, Seine-Maritime departement, Haute-Normandie region, northern France, on the Seine River. The name Quevilly comes from the Latin Quevillicium-in ancient French Chivilly, or Chevilli-meaning "a row of spikes" that enclosed a park where the Norman dukes ...
Le Play, Frederic
French mining engineer and sociologist who developed techniques for systematic research on the family.
Le Poulain, Jean
French actor and administrator who was celebrated primarily for his comedic interpretations but also was noted for his tragic roles.
Le Puy-en-Velay
town, capital of Haute-Loire departement, Auvergne region, south-central France. Le Puy-en-Velay is situated in the Massif Central, at 2,067 feet (630 m) above sea level, 2 miles (3 km) from the left bank of the Loire River. It lies in ...
Le Sueur, Eustache
painter known for his religious pictures in the style of the French classical Baroque. Le Sueur was one of the founders and first professors of the Royal Academy of Painting and Sculpture.
Le Sueur, Meridel
American author who espoused feminism and social reform in her fiction, journalism, and poetry.
Le Tellier, Michel
secretary of state for war (1643-77) and then chancellor who created the royal army that enabled King Louis XIV to impose his absolute rule on France and establish French hegemony in Europe.
Le Thanh Tong
the greatest ruler of the Later Le dynasty (q.v.; 1428-1788) in Vietnam. Though the early years of Le Thanh Tong's reign were marked by a struggle for power, he eventually developed a governmental power base. He established a Chinese-style centralized ...
Le Touquet-Paris-Plage
town, Pas-de-Calais departement, Nord-Pas-de-Calais region, northern France, at the mouth of the Canche River. Situated on the English Channel 20 miles (32 km) south of Boulogne, it is a fashionable seaside resort with casinos, sports facilities, fine sands, and a ...
Le Van Duyet
Vietnamese military strategist and government official who served as a diplomatic liaison between Vietnam and France and defended Christian missionaries against the early Nguyen emperors.
Le Verrier, Urbain-Jean-Joseph
French astronomer who predicted by mathematical means the existence of the planet Neptune.
Lea, River
river rising north of Luton in the county of Bedfordshire, England. It flows for 46 miles (74 km) east and then south to enter the River Thames near Bromley-by-Bow, in the London borough of Tower Hamlets. In the 17th century ...
leaching
in geology, loss of soluble substances and colloids from the top layer of soil by percolating precipitation. The materials lost are carried downward (eluviated) and are generally redeposited (illuviated) in a lower layer. This transport results in a porous and ...
Leacock, Stephen
internationally popular Canadian humorist, educator, lecturer, and author of more than 30 books of lighthearted sketches and essays.
lead
a soft, silvery-white or grayish metal in Group IVa of the periodic table. Lead is very malleable, ductile, and dense and is a poor conductor of electricity. Known in antiquity and believed by the alchemists to be the oldest of ...
Lead
city, Lawrence county, western South Dakota, U.S. It lies in the northern Black Hills, about 40 miles (65 km) northwest of Rapid City, at an elevation of 5,280 feet (1,609 metres). Situated just southwest of Deadwood, it is built on ...
lead poisoning
deleterious effect of a gradual accumulation of lead in body tissues, as a result of repeated exposure to lead-containing substances.
lead processing
preparation of the ore for use in various products.
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