city, northeastern Rio Grande do Sul estado (state), southern Brazil, lying at 2,490 feet (760 metres) above sea level on the range of hills separating the Antas ...
small, low island, usually sandy, situated on a coral reef platform. Such islands are commonly referred to as keys in Florida and parts of the Caribbean. Sand cays are usually ...
Indians of the coastal lowlands of western Ecuador, one of the few aboriginal groups left in the region. The Cayapa speak a Chibchan language somewhat related to the language of ...
capital and Atlantic Ocean port of French Guiana. It is located at the northwestern end of Cayenne Island, which is formed by the estuaries of the Cayenne and Mahury rivers. ...
town and municipio (municipality), central Cayey Mountains, Puerto Rico. The town, at an altitude of 1,300 feet (400 metres), was founded in 1773 as Cayey de Muesas ...
English mathematician and leader of the British school of pure mathematics that emerged in the 19th century. The interested viewer may read an extract from the geometry article he wrote ...
British colony in the Caribbean Sea, comprising the islands of Grand Cayman, Little Cayman, and Cayman Brac, situated about 180 miles (290 kilometres) northwest of Jamaica. The islands are the ...
submarine trench on the floor of the western Caribbean Sea between Jamaica and the Cayman Islands. It extends from the Windward Passage at the southeastern tip of Cuba toward Guatemala. ...
French poet, novelist, and essayist, who stood at the frontiers of the New Novel (nouveau roman), the avant-garde French novel that emerged in the 1950s.
county, central New York state, U.S., bounded by Lake Ontario to the north and Cayuga Lake to the southwest. It consists of a region of rolling hills in the Finger ...
Iroquoian-speaking North American Indians, members of the Iroquois Confederacy, who originally inhabited the region bordering Cayuga Lake in what is now central New York state. (See also Iroquois.) Cayuga men ...
last of the three major divisions of Silurian rocks and time (the Silurian Period lasted from 438 to 408 million years ago). It was named for exposures studied in the ...
North American wild or Indian-tamed horse, descended from horses taken to the New World by the Spanish in the 16th century. The name comes from that of an Indian tribe ...
major American broadcasting company and operator of the CBS national radio and television networks. The company was incorporated in 1927 as United Independent Broadcasters, Inc. Its name was changed a ...
type of computer memory in the form of a compact disc that is read by optical means. A CD-ROM drive uses a low-power laser beam to read digitized (binary) data ...
market town and urban district of County Meath, Ireland, on the River Blackwater. The town was originally a royal residence. In the 6th century it was granted to St. Columba ...
genus of North American shrubs, of the buckthorn family (Rhamnaceae), comprising about 55 species. The leaves are alternate or opposite. The very small blue or white flowers are borne in ...
estado ("state") of northeastern Brazil. It is bounded on the north by the Atlantic Ocean, on the east by the Atlantic and the states of Rio Grande do Norte and ...
a total cessation of armed hostilities, regulated by the same general principles as those governing armistice. In contemporary diplomatic usage the term implies that the belligerents are too far apart ...
king of the West Saxons, or Wessex, from 560 to 592, who drove the Britons from most of southern England and carved out a kingdom in the southern Midlands.
island, central Philippines. It is the centre of Visayan-Cebuano culture and has preserved a strong Spanish tradition in its cultural life. Attracted by the island's focal position, the Portuguese navigator ...
city, Cebu Island, south-central Philippines. Located on Cebu Island's eastern coast, it is protected by offshore Mactan Island and by the inland Cordillera Central. It is one of the nation's ...
the second largest cultural-linguistic group in the Philippines, numbering about 17,010,000 in the late 20th century. They speak an Austronesian (Malayo-Polynesian) language and are sometimes grouped with the Hiligaynon and ...
member of the Western, or Indonesian, branch of the Austronesian (Malayo-Polynesian) language family. It was spoken in the late 20th century by as many as 14,600,000 persons in the Philippines ...
American biochemist and molecular biologist who, with Sidney Altman, was awarded the 1989 Nobel Prize for Chemistry for their discoveries concerning RNA (ribonucleic acid).
county, northeastern Maryland, U.S., lying at the head of Chesapeake Bay and bounded by Pennsylvania to the north, Delaware to the east, the Sassafras River to the south, and the ...
one of England's most famous and politically influential families, represented by two branches, holding respectively the marquessates of Exeter and Salisbury, both descended from William Cecil, Lord Burghley, Elizabeth I's ...
British statesman and winner of the Nobel Prize for Peace in 1937. He was one of the principal draftsmen of the League of Nations Covenant in 1919 and one of ...
principal adviser to England's Queen Elizabeth I through most of her reign. Cecil was a master of Renaissance statecraft, whose talents as a diplomat, politician, and administrator won him high ...
patroness of music, one of the most famous Roman martyrs of the early church, and historically one of the most discussed. According to a late 5th-century legend, she was a ...
several species of tropical tree of the family Cecropiaceae common to the understory layer of disturbed forest habitats of Central and South America. It is easily recognized by its thin, ...
traditionally the first king of Attica in ancient Greece. He was said to have instituted the laws of marriage and property and a new form of worship. The introduction of ...
pouch or large tubelike structure in the lower abdominal cavity that receives undigested food material from the small intestine and is considered the first region of the large intestine. It ...
any of four species of ornamental and timber evergreen conifers of the genus Cedrus (family Pinaceae), three native to mountainous areas of the Mediterranean region and one to the western ...
a vast natural amphitheatre, with a diameter of more than 3 miles (5 km), eroded in a limestone escarpment (Pink Cliffs) 2,000 feet (600 metres) thick in southwestern Utah, U.S., ...
city, Iron county, southwestern Utah, U.S., on the scarp of the Hurricane Fault, 5,800 feet (1,768 metres) above sea level. Founded in 1851, following the discovery of iron ore, it ...
city, Black Hawk county, east-central Iowa, U.S., on the Cedar River, just west of Waterloo. Settled in 1845 by William Sturgis and laid out in 1852, it was first called ...
city, seat (1919) of Linn county, east-central Iowa, U.S. It lies astride the Cedar River adjacent to the cities of Marion (northeast) and Hiawatha (north), about 25 miles (40 km) ...
nonnavigable stream in the north-central United States, flowing from southeastern Minnesota southeasterly across Iowa and joining the Iowa River about 20 miles (32 km) from the Mississippi River. Over the ...
common disease in North America of red cedar (Juniperus virginiana), related Juniperus species, apple, and crab apple, caused by the fungus Gymnosporangium juniperi-virginianae. Both hosts, the junipers and the apples, ...
town and port, west-central South Australia. It lies on Denial Bay along the Great Australian Bight, 340 miles (550 km) northwest of Adelaide. It was founded in 1896. Its name ...
town and episcopal see, Palermo provincia, northern Sicily, Italy. It lies at the foot of a 1,233-foot (376-metre) promontory along the Tyrrhenian Sea, east of Palermo city. It originated as ...
town, Brindisi provincia, Puglia (Apulia) regione, southern Italy, northeast of Taranto. It is an agricultural-trading centre and has a medieval castle with cylindrical towers. In the surrounding area are numerous ...
the overhead surface or surfaces covering a room, and the underside of a floor or a roof. Ceilings are often used to hide floor and roof construction. They have been ...
device for measuring the height of cloud bases. One important use of the ceilometer is to determine cloud ceilings at airports. The device works day or night by shining an ...
Chinese, Korean, Siamese, and Japanese stoneware decorated with green glazes. To create this ware, artisans apply a wash of slip (liquefied clay), which contains a high proportion of iron, to ...
ancient fortress city of Phrygia (in present Turkey), the starting point of the march of the "Ten Thousand" under Cyrus (401 BC) against Artaxerxes (recounted in Xenophon's Anabasis). In 333 ...
poet who, though he never lived in Germany, gave its post-World War II literature one of its most powerful and regenerative voices. His poetry was influenced stylistically by French Surrealism, ...
any of several distinct flowering plants of similar appearance. The celandine proper, or greater celandine (Chelidonium majus), once a valued plant of the Old World herbalist, is now grown somewhat ...
the staff-tree family, in the order Celastrales, comprising about 55 genera of woody vines, shrubs, and trees, native in tropical and temperate zones but best known for ornamental forms of ...
order of flowering plants, belonging to the class Magnoliopsida, or the dicotyledons (q.v.; characterized by two seed leaves). Its members are chiefly trees belonging to 12 families, 147 genera, and ...
city, south-central Guanajuato estado ("state"), north-central Mexico. It is in the fertile Bajio region on the Mexican Plateau, 2.5 miles (4 km) north of the Laja River and 5,774 feet ...
(April 1915), decisive military engagement in the wars between revolutionary factions following the Mexican Revolution of 1911. One of the bloodiest battles in Mexican history, it was fought at Celaya, ...
one of the four Greater Sunda Islands, Indonesia. A curiously shaped island with four distinct peninsulas that form three major gulfs-Tomini (the largest) on the northeast, Tolo on the east, ...
a mainly arboreal Indonesian monkey named for the narrow crest of hair that runs along the top of the head from behind the overhanging brow. The Celebes crested macaque is ...
sea of the western Pacific Ocean, bordered on the north by the Sulu Archipelago and Sea and Mindanao Island, on the east by the Sangi Islands chain, on the south ...
(species Apium graveolens), herb of the family Apiaceae (Umbelliferae). Native to the Mediterranean areas and the Middle East, celery was used as a flavouring by the ancient Greeks and Romans ...
(species Phyllocladus asplenifolius), slow-growing ornamental and timber conifer of the family Podocarpaceae, native to temperate rain forests of Tasmania at elevations from sea level to 750 m (2,500 feet). The ...
orchestral percussion instrument resembling a small upright piano, patented by a Parisian, Auguste Mustel, in 1886. It consists of a series of small metal bars (and hence is a metallophone) ...
representation of stars and constellations as they are located on the apparent sphere of the sky. Celestial globes are used for some astronomical or astrological calculations or as ornaments.
in the broadest sense, the application of classical mechanics to the motion of celestial bodies acted on by any of several types of forces. By far the most important force ...
use of the observed positions of celestial bodies to determine a navigator's position. At any moment some celestial body is at the zenith of any particular location on the Earth's ...
the apparent surface of the heavens, on which the stars seem to be fixed. For the purpose of establishing coordinate systems to mark the positions of heavenly bodies, it can ...
