city, Saxony-Anhalt Land (state), central Germany. It is situated in the eastern foothills of the Harz Mountains. First mentioned in 994 as a market called Islebia and ...
a game played on ice in the winter and on asphalt or other surfaces during the rest of the year, similar to curling and shuffleboard. The game became popular in ...
formal assembly of Welsh bards and minstrels that originated in the traditions of court bards of medieval times. The modern National Eisteddfod, revived in the 19th century and held each ...
the release of sperm cells and seminal plasma from the male reproductive system. Ejaculation takes place in two phases: in the first, or emission, stage, sperm are moved from the ...
either of two hollow tubes, each formed by union of the ampulla of a ductus deferens (q.v.) and the excretory duct of a seminal vesicle (q.v.). The ducts, which open ...
in Anglo-American property law, legal action for recovery of land from one wrongfully in possession and monetary compensation for his unlawful detention of the land.
in Mexico, village lands communally held in the traditional Indian system of land tenure that combines communal ownership with individual use. The ejido consists of cultivated land, pastureland, other uncultivated ...
city, west-central Armenia. It lies on the plain of the Aras River, 12 miles (20 km) west of Yerevan. Ejmiadzin is the seat of the supreme catholicos, or primate, of ...
Swedish chemist who in 1802 discovered the element tantalum. After graduation from the University of Uppsala (1788) and travels in Germany, Ekeberg returned to Uppsala and began teaching (1794), introducing ...
city and major opencut coal-mining centre in northeastern Kazakstan, on the Ertis-Qaraghandy Canal. Coal was discovered in the region in 1876 and was mined on a small scale. Only after ...
science of human settlements. Ekistics involves the descriptive study of all kinds of human settlements and the formulation of general conclusions aimed at achieving harmony between the inhabitants of a ...
teacher, monk, hymnist, and poet who until about 1941 was regarded the author of Waltharius, a celebrated Latin heroic poem based on the life of King Walter of Aquitaine.
teacher, glossarist, writer, famous as one of the principal authors of Casus Sancti Galli ("The Events of Sankt Gallen [St. Gall]")-an important history of the monastery.
Swedish physical oceanographer best known for his studies of the dynamics of ocean currents. The common oceanographic terms Ekman layer, denoting certain oceanic or atmospheric layers occurring at various interfaces; ...
group of Norwegian offshore natural-gas and oil fields located in the North Sea about 180 miles (290 km) southwest of Norway, halfway between Norway and the United Kingdom. The Ekofisk ...
group of peoples situated in extreme southeastern Nigeria and extending eastward into neighbouring Cameroon. Ekoid Bantu languages are spoken by many groups, including the Atam, Boki, Mbembe, Ufia, and Yako. ...
ancient Canaanite and Philistine city, one of the five cities of the Philistine pentapolis, and currently identified with Tel Miqne (Arabic: Khirbat al-Muqanna'), south of the settlement of Mazkeret Batya, ...
(Greek: "to expose," or "to set forth"), in logic, process used by Aristotle to establish the validity of certain propositions or syllogisms. For example, in the Analytica priora he argued: ...
Igbo novelist, short-story writer, and children's author whose strength lies in his realistic depiction of the forces that have shaped the African city dweller.
the general term for "deity" in Semitic languages as well as the name of the chief deity of the West Semites. In the ancient texts from Ras Shamra (ancient Ugarit) ...
town, capital of Western Sahara from 1940 to 1976 (when Western Sahara was a northwest African overseas province of Spain) and capital since 1976 of the not internationally recognized Laayoune ...
community of El Agustino distrito ("district"), Peru, in the east-central Lima-Callao metropolitan area. It was founded about 1955, when tenant farmers found it more profitable to lease land for residences ...
Israeli airline founded by Israel in November 1948 after the establishment of the new nation. It flew its first commercial scheduled flights-to Rome and Paris-in July 1949, and by the ...
culture characterized by a flourishing metallurgy of bronze, silver, and gold that appeared at the beginning of the 2nd millennium BC in the Almeria (southeastern) region of the Iberian Peninsula. ...
city, northern Colombia, at the junction of the Magdalena and Cesar rivers. The conquistador Gonzalo Jimenez de Quezada arrived at the site in 1537 and found the Indian village of ...
town, Bolivar estado ("state"), eastern Venezuela, on the right bank of the Yuruari River, about 135 miles (272 km) east-southeast of Ciudad Bolivar in the Venezuelan Guiana Highlands. The town ...
city, seat (1907) of Imperial county, southeastern California, U.S. It lies 120 miles (200 km) east of San Diego and 10 miles (16 km) north of Mexicali, Mexico. A desert ...
city, Contra Costa county, California, U.S. El Cerrito lies on the eastern shore of San Francisco Bay, north of Oakland and 15 miles (25 km) northeast of San Francisco via ...
city, seat (1843) of Union county, southern Arkansas, U.S., 100 miles (160 km) south of Little Rock. The site was selected in 1843 by county commissioners Robert Black, John Hampton, ...
village, western Madrid provincia (province) and comunidad autonoma (autonomous community), central Spain, in the Guadarrama mountains, 26 miles (42 km) northwest of Madrid. It ...
city, La Coruna provincia (province), in the northern section of the comunidad autonoma (autonomous community) of Galicia, in extreme northwestern Spain. It is located ...
high-valley lava flow area, Cibola county, west-central New Mexico, U.S., about 15 miles (24 km) southwest of Grants. The area covered by black lava flow extends about 133 square miles ...
city, Los Angeles county, California, U.S. El Monte lies 12 miles (20 km) east of downtown Los Angeles. Spanish missionaries and soldiers inhabited the area in the 18th and early ...
rock formation and archaeological site in west-central New Mexico, U.S., 12 miles (19 km) southeast of Ramah. The monument was established in 1906 and has an area of 2 square ...
(Spanish: "The Christ Child"), in oceanography and climatology, the anomalous appearance, every few years, of unusually warm ocean conditions along the tropical west coast of South America. This event is ...
region of eastern Ecuador, comprising the eastern slopes of the Ecuadorian Andes and the lowland areas of rain forest in the Amazon basin. It is bounded on the north by ...
Late Preceramic site in the present-day Chillon Valley on the central Peruvian coast, generally believed to date just before the beginning of the Initial Period (c. 2100-1800 BC). It is ...
city, seat (1850) of El Paso county, extreme western Texas, U.S., on the Rio Grande, there bridged to Juarez, Mexico, just south of the New Mexico line. The largest of ...
city, northwestern Honduras, on the Ulua River, southeast of San Pedro Sula. The city, founded in 1927 as a banana trade centre, grew in the 1970s into a commercial and ...
port city, Cadiz provincia, in Andalusia comunidad autonoma ("autonomous community"), southern Spain, at the mouth of Guadalete River on Bahia (bay) de Cadiz, southwest of Jerez de la Frontera. The ...
city, seat (1907) of Canadian county, central Oklahoma, U.S., on the North Canadian River, immediately west of Oklahoma City. Settled in 1889 when the Rock Island Railroad arrived, the town ...
country of Central America. With a total area of 8,124 square miles (21,041 square kilometres), it is the smallest and most densely populated of the seven Central American countries. Its ...
city, eastern Dominican Republic, on the Soco River. Founded in 1502, the city serves as a trading centre for the agricultural hinterland. The region yields cacao, coffee, sugarcane, and corn ...
rural community, north-central Northern Territory, Australia. It serves as the base for uranium mining; the ore, discovered in 1953 and found in ridges far above the floor of the South ...
mining settlement, O'Higgins region, Machali commune, central Chile. The site of the world's largest underground copper mine, it lies in the Andes Mountains about 60 miles (100 km) southeast of ...
city, central Anzoategui estado ("state"), northeastern Venezuela, situated in the highlands east of the Barcelona gap. The city is a commercial centre in the Oficina oil fields. Oil is piped ...
the oleaster family of dicotyledonous flowering plants, which together with the family Proteaceae constitutes the order Proteales. The oleaster family comprises three genera of shrubs and small trees of the ...
(genus Elaenia), any of about 20 species of plain-coloured New World flycatchers, family Tyrannidae (order Passeriformes), with a short bill and modest, ragged crest, usually concealing a white or yellow ...
ancient country in southwestern Iran approximately equivalent to the modern region of Khuzestan. Four prominent geographic names within Elam are mentioned in ancient sources: Awan, Anshan, Simash, and Susa. Susa ...
extinct language spoken by the Elamites in the ancient country of Elam, which included the region from the Mesopotamian plain to the Iranian Plateau. Elamite documents from three historical periods ...
either of two species of easily tamed, oxlike antelopes that constitute the genus Taurotragus of the family Bovidae (order Artiodactyla). They are found in herds on the open plains or ...
any of about 200 venomous species of the snake family Elapidae, characterized by short fangs fixed in the front of the upper jaw. Otherwise, elapids resemble the more abundant colubrids. ...
extinct genus of rhinoceros found as a fossil in Pleistocene deposits in northern Eurasia (the Pleistocene Epoch began 1,600,000 years ago and ended 10,000 years ago). Its popular name derives ...
any of the yellowish branching fibres composed primarily of the protein elastin, frequently arranged in plates or perforated membranes, as in the walls of the large arteries. Unlike collagenous fibres, ...
maximum stress or force per unit area within a solid material that can arise before the onset of permanent deformation. When stresses up to the elastic limit are removed, the ...
motion in a medium in which, when particles are displaced, a force proportional to the displacement acts on the particles to restore them to their original position. If a material ...
ability of a deformed material body to return to its original shape and size when the forces causing the deformation are removed. A body with this ability is said to ...
any rubbery material composed of long, chainlike molecules that are capable of recovering their original shape after being stretched to great extents. Under normal conditions the long molecules making up ...
any member of a class of polymeric substances that possess the quality of elasticity, i.e., the ability to regain shape after deformation. Elastomers are the base material for all rubber ...
port city, southern extremity of Israel. It lies at the south tip of the Negev and at the head of the Gulf of Aqaba (Hebrew, Mifratz Elat), the eastern arm ...
family of flowering plants, in the tea order (Theales), comprising two genera of mostly aquatic herbs. Members of the family have opposite or whorled leaves and small flowers with two ...
city, eastern Turkey. It lies at the foot of a plateau overlooking a fertile plain. Originally founded as an Ottoman military garrison and administrative centre after the mid-19th century, the ...
island off the west coast of Italy, in the Tyrrhenian Sea. Elba has an area of 86 square miles (223 square km) and is the largest island of the Tuscan ...
town, central Albania. It lies on the north bank of the Shkumbin River, in the highlands at the eastern end of a fertile, well-watered plain. It was founded in 1466 ...
one of the major waterways of central Europe. It runs from the Czech Republic through Germany to the North Sea, flowing generally to the northwest. The river rises on the ...
mountain in Lake county, Colorado, U.S., whose peak is the highest point (14,433 feet [4,399 metres]) in Colorado and in the American Rocky Mountains. Mount Elbert lies 12 miles (19 ...
