glass: Adding colour and special properties: …class of materials is the chalcogenide glasses, which are selenides, containing thallium, arsenic, tellurium, and antimony in various proportions. They behave as amorphous semiconductors. Their photoconductive properties are also valuable.

Hymenoptera: Annotated classification: Superfamily Chalcoidea (chalcids) A large, important group; chiefly found on flowers and foliage. Family Mymaridae (fairyflies) Mostly less than 1 mm long; smallest about 0.21 mm; all are parasites of eggs. Family Trichogrammatidae (trichogrammatids) About

Chalcolithic Age, beginning of the Bronze Age

Demetrius Chalcondyles was a Renaissance teacher of Greek and of Platonic philosophy. In 1447 Demetrius went to Italy, where Cardinal Bessarion became his patron. He was made professor at Padua in 1463. In 1479 he was summoned by Lorenzo de’ Medici to Florence, but in 1492 he moved to Milan. He was

Laonicus Chalcocondyles was a Byzantine historian, the author of the valuable work Historiarum demonstrationes (“Demonstrations of History”). Chalcocondyles came of a distinguished Athenian family and was educated at the Palaeologan court at Mistra in the Peloponnese. His history is prefaced by a

chemical element: Elements of minor and trace abundance: Chalcophile elements are all of rather low abundance, and the minerals that they form, mainly sulfides and some arsenides, are not stable at the high temperatures of igneous crystallization. Sometimes these elements are found in granites and pegmatites—molybdenite (MoS2) is a typical example. More frequently…

chalcopyrite, the most common copper mineral, a copper and iron sulfide, and a very important copper ore. It typically occurs in ore veins deposited at medium and high temperatures, as in Río Tinto, Spain; Ani, Japan; Butte, Mont.; and Joplin, Mo. Chalcopyrite (Cu2Fe2S4) is a member of a group of

Fay Weldon: …explores her family’s past, and Chalcot Crescent (2009), which is set in a world plagued by a never-ending recession. Weldon also wrote several series, including a trilogy about another wealthy family and its servants; the installments were Habits of the House (2012), Long Live the King (2013), and The New…

cuprite: Chalcotrichite, or plush copper ore, is loosely matted aggregates of capillary crystals with a rich carmine colour and a silky lustre. Tile ore is a soft, earthy variety that is brick-red to brownish red; it often contains admixed hematite or limonite and has been formed…

Chaldea, land in southern Babylonia (modern southern Iraq) frequently mentioned in the Old Testament. Strictly speaking, the name should be applied to the land bordering the head of the Persian Gulf between the Arabian desert and the Euphrates delta. Chaldea is first mentioned in the annals of the

Chaldean Catholic Church, Eastern rite church prevalent in Iraq, Iran, and Lebanon, united with the Roman Catholic Church since 1830, and intermittently from 1551. Christianity in Iraq and Iran dates from the late 2nd century. In the 5th century, the Church of the East embraced Nestorianism, a

Neo-Babylonian empire, ancient Middle Eastern empire with its capital at Babylon. It dominated much of Southwest Asia from shortly after its founding in 626 bce until the defeat of its final king by the Persian king Cyrus the Great in 539 bce. Memory of this empire was preserved through the

Urartian language, ancient language spoken in northeastern Anatolia and used as the official language of Urartu in the 9th–6th centuries bce. Urartu centred on the district of Lake Van but also extended over the Transcaucasian regions of modern Russia and into northwestern Iran and at times even

Platonism: Neoplatonism: its nature and history: …century ce known as the Chaldean Oracles, which were taken as inspired authorities by the later Neoplatonists, seem to have been a hodgepodge of popular Greek religious philosophy.

Chaldean rite, system of liturgical practices and discipline historically associated with the Assyrian Church of the East (the so-called Nestorian Church) and also used by the Roman Catholic patriarchate of Babylon of the Chaldeans (see also Eastern rite church), where it is called the East Syrian

Battle of Chāldirān, military engagement on August 23, 1514 (2 Rajab 920), in which the Ottomans won a decisive victory over the Ṣafavids of Iran and went on to gain control of eastern Anatolia. Although possession of artillery ensured a decisive victory for the Ottomans, the battle heralded the

Imperial units: Establishment of the system: …measures as the rod and chaldron (a measure of coal equal to 36 bushels) and redefined the standard yard and pound as 0.9144 metres and 0.45359237 kg respectively. The gallon now equals the space occupied by 10 pounds of distilled water of density 0.998859 gram per millilitre weighed in air…

chalet, timber house characteristic of Switzerland, the Bavarian Alps, Tirol, and the French Alps. The name originally referred to a sheepherder’s dwelling and, later, to any small house in the mountains. The chalet is distinguished above all by the frank and interesting manner in which its

André Baillon: …while he was hospitalized, and Chalet 1 (1926), he recounts his experiences of hospitalization. The latter two works and the remarkable story collection Délires (1927; “Deliriums”), were written with absolute clarity. A sentimental tone mars somewhat the tragic introspection of Le Perce-Oreille du Luxembourg (1928; “The Earwig of Luxembourg”). His…

theatre music: Romantic expansion: …the otherwise conventional comedy of Le Châlet (1834), Adam stimulated a popular taste for what became the mainstream of operetta. Its source was in Paris, and it flowed in turn principally to Vienna, to London and thence to North America, submerging the German singspiel and its Scandinavian offshoots but leaving…

Chaleur Bay, inlet of the Gulf of St. Lawrence, extending between Quebec’s Gaspé Peninsula and northern New Brunswick, Canada, and called by the Indians the “sea of fish.” It is a submerged valley of the Restigouche River and is 90 miles (145 km) long and 15 to 25 miles (24 to 40 km) wide. The bay

Martin Chalfie is an American chemist who was a corecipient, with Osamu Shimomura and Roger Y. Tsien, of the 2008 Nobel Prize for Chemistry. Chalfie received a Ph.D. in neurobiology from Harvard University in 1977. In 1982 he became a professor of biological sciences at Columbia University in New

Chalfont St. Giles, town (parish), Chiltern district, administrative and historic county of Buckinghamshire, England. It is situated just northeast of Beaconsfield and 24 miles (39 km) northwest of central London. Much frequented by visitors because of its Quaker associations as well as its

Jean-François-Thérèse Chalgrin was a French architect, developer of an influential Neoclassical architectural style and designer of the Arc de Triomphe in Paris. Chalgrin was trained by the celebrated architect E.-L. Boullée and in the office of Giovanni Niccolò Servandoni. He took the Academy of

Omar Sharif was an Egyptian actor of international acclaim, known for his dashing good looks and for iconic roles in such films as Lawrence of Arabia (1962) and Doctor Zhivago (1965). Shalhoub was born in Alexandria, the only son of a prosperous lumber merchant. When he was four years old, he moved

Feodor Chaliapin was a Russian operatic basso profundo whose vivid declamation, great resonance, and dynamic acting made him the best-known singer-actor of his time. Chaliapin was born to a poor family. He worked as an apprentice to a shoemaker, a sales clerk, a carpenter, and a lowly clerk in a

Feodor Chaliapin was a Russian operatic basso profundo whose vivid declamation, great resonance, and dynamic acting made him the best-known singer-actor of his time. Chaliapin was born to a poor family. He worked as an apprentice to a shoemaker, a sales clerk, a carpenter, and a lowly clerk in a

chalice, a cup used in the celebration of the Christian Eucharist. Both the statement of St. Paul about “the cup of blessing which we bless” (1 Corinthians 10:16) and the accounts of the institution of the Eucharist in the first three Gospels indicate that special rites of consecration attended the

Chalicotherium, genus of extinct perissodactyls, the order including the horse and rhinoceros. Fossil remains of the genus are common in deposits of Asia, Europe, and Africa from the Miocene Epoch (23 to 5.3 million years ago). The genus persisted into the following Pliocene Epoch, and remains of a

Belize: Resources and power: …the early 21st century the Chalillo hydroelectric dam, covering about 3 square miles (8 square km), was built on the Macal River in western Belize, despite the safety and environmental concerns of certain groups. The Chalillo Dam’s reservoir has enough water storage capacity to power its own hydroelectric plant and…

chalk, soft, fine-grained, easily pulverized, white-to-grayish variety of limestone. Chalk is composed of the shells of such minute marine organisms as foraminifera, coccoliths, and rhabdoliths. The purest varieties contain up to 99 percent calcium carbonate in the form of the mineral calcite. The

beekeeping: Diseases: Chalk brood is caused by the fungus Ascosphaera apis. The larvae victims of this disease have a chalky white appearance. Stonebrood, which affects both brood and adults, is also caused by a fungus, Aspergillus flavus, which can usually be isolated from bees that have stonebrood.

Chinese performing arts: The Yuan period: Huilan ji (The Chalk Circle), demonstrating the cleverness of a famous judge, Bao, is known in the West, having been adapted (1948) by the German playwright Bertolt Brecht in The Caucasian Chalk Circle. The class of bandit dramas are mostly based on the novel Shuihu zhuan (The…

crayon: …the colouring crayon and the chalk crayon.

chalk drawing, in the visual arts, technique of drawing with chalk, a prepared natural stone or earth substance that is usually available in black (made either from soft black stone or from a composition including lampblack), white (made from various types of limestone), and red, or sanguine (made

hand tool: Chalk line: “Snapping a line,” a technique familiar in ancient Egypt, is employed in modern building construction. The procedure uses a taut chalk-covered cord that is stretched between two points: the cord deposits a straight line of chalk when it is plucked and snapped onto…

maple: The chalk maple, with whitish bark, is sometimes classified as A. leucoderme, although some authorities consider it a subspecies of sugar maple.

Laurentian Hills, town, Renfrew county, southeastern Ontario, Canada. It lies along the Chalk River near its mouth on the Ottawa River, 90 miles (145 km) northwest of Ottawa. The town was formed in 2000 by the amalgamation of Chalk River and several other adjacent communities and was renamed

printmaking: Crayon manner and stipple engraving: Invented in the 18th century, crayon manner was purely a reproduction technique; its aim was the imitation of chalk drawings. The process started with a plate covered with hard ground (see below Etching). The design was created using a great…

Scrubs: …love interest, Elliot Reid (Sarah Chalke); his college buddy, Christopher Duncan Turk (Donald Faison); his overbearing mentor, Dr. Percival Cox (John C. McGinley); and his unlikely adversary, a hospital janitor (Neil Flynn). Most episodes ended with a music-driven visual sequence in which J.D. reflects on the show’s theme and…

John Chalkhill was an English poet whose Thealma and Clearchus was published posthumously in 1683 by Izaak Walton, and who was identified in the third edition of Walton’s Compleat Angler as the author of two songs which appeared there from the first edition (1653). Because little was known of

Chalcis, city and dímos (municipality) on the island of Euboea (Évvoia), periféreia (region) of Central Greece (Modern Greek: Stereá Elláda), western Greece. It lies at the narrowest point (measured only in yards) of the Euripus (Evrípos) channel, which separates Euboea from the Greek mainland and

Laonicus Chalcocondyles was a Byzantine historian, the author of the valuable work Historiarum demonstrationes (“Demonstrations of History”). Chalcocondyles came of a distinguished Athenian family and was educated at the Palaeologan court at Mistra in the Peloponnese. His history is prefaced by a

percussion instrument: Idiophones: …simply called “the bronze” (chalkos), probably a metal percussion disk. When the Egyptian cult of Isis spread to Greece and Rome, her sistrum followed, always in the hands of a priest or—rarely—priestess.

challah, traditional Jewish yeast-leavened bread that is made with eggs and is known for its rich flavor. Challah is usually braided and is served on the Sabbath (Shabbat), the day of holiness and rest observed by Jews from sunset on Friday to nightfall of the following day. It is also served on

Mary Renault was a British-born South African novelist, best known for her scholarship and her skill in re-creating classical history and legend. Renault graduated from St. Hugh’s College and Radcliffe Infirmary, Oxford, completing her training as a nurse in 1937. She had begun to write novels but

pre-Columbian civilizations: Civil war on the eve of the Spanish conquest: …able generals Quisquis (Kizkiz) and Challcuchima (Challku-chima), marched south and won a series of decisive victories at Cajamarca, Bombon, and Ayacucho. As they moved southward, Huascar formed another army to defend Cuzco from the invaders. His forces were defeated, and he was captured a few miles from Cuzco in April…

voir dire, in law, process of questioning by which members of a jury are selected from a large panel, or venire, of prospective jurors. The veniremen are questioned by the judge or by the attorneys for the respective parties. The voir dire attempts to detect bias or preconceived notions of guilt or

Football Association: …for national competitions, including the Challenge Cup series that culminates in the traditional Cup Final at Wembley.

Wangari Maathai: Another volume, The Challenge for Africa (2009), criticized Africa’s leadership as ineffectual and urged Africans to try to solve their problems without Western assistance. Maathai was a frequent contributor to international publications such as the Los Angeles Times and the Guardian.

Vance Brand: …Brand was commander of the Challenger space shuttle (STS-41-B; February 3–11, 1984). Although this trip was plagued by several malfunctions and two communications satellites were misdirected, Bruce McCandless’s performance of the first space walk without a lifeline and the successful return of the shuttle to its home base were regarded…

tank: Gun calibre: The British Challenger, introduced in the 1980s, was also armed with 120-mm guns, but these were still of the rifle type.

Challenger Deep, series of three seafloor basins located at the bottom of a steep-walled submarine valley in the Mariana Trench of the western Pacific Ocean, at 11°22′ N 142°35′ E. The Challenger Deep is the lowest point of the oceans and Earth’s lowest point with respect to surface elevation,

Neal Shusterman: …People’s Literature for the novel Challenger Deep (2015), and his novel Scythe (2016) was a Michael L. Printz Honor book.

Challenger disaster, explosion of the U.S. space shuttle orbiter Challenger, shortly after its launch from Cape Canaveral, Florida, on January 28, 1986. The disaster claimed the lives of seven astronauts. The primary goal of shuttle mission 51-L was to launch the second Tracking and Data Relay

Challenger Expedition, prolonged oceanographic exploration cruise from Dec. 7, 1872, to May 26, 1876, covering 127,600 km (68,890 nautical miles) and carried out through cooperation of the British Admiralty and the Royal Society. HMS Challenger, a wooden corvette of 2,306 tons, was commanded by

Luca Guadagnino: His next feature was Challengers (2024). A collaboration with novelist and playwright Justin Kuritzkes, Challengers stars Mike Faist, Josh O’Connor, and Zendaya as champion tennis players navigating a love triangle. The film received somewhat positive critical reviews. Also in 2024, Guadagnino and Kuritzkes collaborated on Queer, an adaptation of…

challenges to democracy, in contemporary political science and international relations, the problems and threats faced by democratic governments throughout the world in the 21st century. Contemporary democracy is faced with new and growing challenges. The stability of democratic governments has

French literature: The novel: …is now seen to be Robert Challes, whose Illustres françaises (1713; The Illustrious French Lovers), a collection of seven tales intertwined, commands attention for its serious realism and a disabused candour anticipating Stendhal. As the bourgeoisie acquired a more prominent place in society and the focus switched to exploring the…

Borah Peak: …from Idaho, is located in Challis National Forest, 50 miles (80 km) northeast of Hailey. The peak lies in a tectonically active district, and in 1983 it was the epicentre of an earthquake that measured 7.2 on the Richter scale.

James Challis was a British clergyman and astronomer, famous in the history of astronomy for his failure to discover the planet Neptune. Elected a fellow of Trinity College, Cambridge, in 1826 and ordained in 1830, Challis became Plumian professor of astronomy and director of the Cambridge

pre-Columbian civilizations: Civil war on the eve of the Spanish conquest: …able generals Quisquis (Kizkiz) and Challcuchima (Challku-chima), marched south and won a series of decisive victories at Cajamarca, Bombon, and Ayacucho. As they moved southward, Huascar formed another army to defend Cuzco from the invaders. His forces were defeated, and he was captured a few miles from Cuzco in April…

Richard Challoner was a leader of English Roman Catholics whose revision of the Douai-Reims version of the Bible became the authorized edition for English Catholics. Challoner was educated at the English College at Douai, France, where he was ordained (1716) and appointed vice president and

Alexander Chalmers was a Scottish editor and biographer best known for his General Biographical Dictionary (1812–17), a 32-volume revision of work first published in 11 volumes (1761). Chalmers’ Glossary to Shakespeare (1797) was followed by The Works of the English Poets from Chaucer to Cowper

James Chalmers was a Scottish Congregationalist missionary who explored the southwest Pacific, where he became known as “the Livingstone of New Guinea.” Ordained in 1865, Chalmers was sent by the London Missionary Society to Rarotonga in 1866. Having facilitated the establishment of British rule in

Thomas Chalmers was a Presbyterian minister, theologian, author, and social reformer who was the first moderator of the Free Church of Scotland. Chalmers was ordained as minister of Kilmeny parish, Fife, in 1803. After reading William Wilberforce’s Practical View of the Prevailing Religious System

Mongla, port city, southwestern Bangladesh. Formerly located at Chalna, about 11 miles (18 km) upstream on the Pusur River, the port is the main seaport for the country’s western region. Mongla lies about 60 miles (100 km) north of the Bay of Bengal and is connected to the major inland river ports

Chalon-sur-Saône, town, Saône-et-Loire département, Bourgogne-Franche-Comté région, east-central France, south of Dijon. Chalon’s fine quays border the Saône River at its junction with the Canal du Centre. An important town of the Gallic tribe of Aedui, it was called Cabillonum by the Romans. In

Châlons-en-Champagne, town, capital of Marne département, Grand Est région, northeastern France. It lies along the right bank of the Marne River, in the heart of the rolling Champagne country. Small branches of the Marne River flow through the town. Chief town of a Gallic tribe, the Catalauni, it

Châlons-en-Champagne, town, capital of Marne département, Grand Est région, northeastern France. It lies along the right bank of the Marne River, in the heart of the rolling Champagne country. Small branches of the Marne River flow through the town. Chief town of a Gallic tribe, the Catalauni, it

Stone Age: Egypt: …triangular section known as the Chalossian type. These are associated with early flake implements. In the 15-meter (49-foot) terrace, developed Acheulean has been recorded, while the nine-meter (29.5-foot) terrace yields large flakes and cores of Levalloisian type. In the low terrace, which occurs at a height of three meters (10…

Louis-René de Caradeuc de La Chalotais was a French magistrate who led the Breton Parlement (high court of justice) in a protracted legal battle against the authority of the government of King Louis XV. The struggle resulted in the purging and suspensions (1771–74) of the Parlements. La Chalotais

Los Glaciares National Park: Mount Fitz Roy (11,073 feet [3,375 meters]) is the highest point in the park. Wildlife includes guanacos, chinchillas, pudu and guemal (two species of small deer), condors, and rheas. The park was designated a UNESCO World Heritage site in 1981.

Madhubala: …broken down in the comedy Chalti Ka Naam Gaadi (1958). She was also remembered for her songs in the thriller Howrah Bridge (1958).

Bengali language: Varieties: …or genteel speech) and the Chaltibhasa (current or colloquial speech). The former was largely shaped by the language of early Bengali poetical works. In the 19th century it became standardized as the literary language and also as the appropriate vehicle for business and personal exchanges. Although it was at times…

Chalukya dynasty, either of two ancient Indian dynasties. The Western Chalukyas ruled as emperors in the Deccan (i.e., peninsular India) from 543 to 757 ce and again from about 975 to about 1189. The Eastern Chalukyas ruled in Vengi (in eastern Andhra Pradesh state) from about 624 to about 1070.

chalumeau, single-reed wind instrument, forerunner of the clarinet. Chalumeau referred to various folk reed pipes and bagpipes, especially reed pipes of cylindrical bore sounded by a single reed, which was either tied on or cut in the pipe wall. Soon after this type of chalumeau became fashionable

Saudi Arabia: Daily life and social customs: …of slacks known as a sirwāl. In public women are expected to be fully veiled, and a long black cloak known as an ʿabāyah is worn. A veil called a hijab covers the head, and another known as a niqāb covers the face. Among Bedouin, women’s clothing is often quite…

Saudi Arabia: Daily life and social customs: …of slacks known as a sirwāl. In public women are expected to be fully veiled, and a long black cloak known as an ʿabāyah is worn. A veil called a hijab covers the head, and another known as a niqāb covers the face. Among Bedouin, women’s clothing is often quite…

siderite, iron carbonate (FeCO3), a widespread mineral that is an ore of iron. The mineral commonly occurs in thin beds with shales, clay, or coal seams (as sedimentary deposits) and in hydrothermal metallic veins (as gangue, or waste rock). Manganese (Mn), magnesium (Mg), and calcium generally

Eliza Orzeszkowa: …superstition of poor farmers, and Cham (1888; “The Boor”), the tragic story of a humble fisherman’s love for a neurotic and sophisticated city girl. Considered Orzeszkowa’s masterpiece, Nad Niemnen (1888; “On the Banks of the Niemen,” filmed 1987) depicts Polish society in Lithuania. Bene nati (1892; “Wellborn”) describes the impoverished…

khan, historically, the ruler or monarch of a Mongol tribe (ulus). At the time of Genghis Khan (early 13th century) a distinction was made between the title of khan and that of khākān, which was the title Genghis assumed as Great Khan, or supreme ruler of the Mongols. The term khan was subsequently

Central Asian arts: Tibetan music: …festival time, when the great ’cham (dance) dramas, which may last several days, are performed for the public’s entertainment and edification. These plays, which generally show the triumph of Buddhism over Bon, the earlier shamanistic religion of Tibet, may involve hundreds of musicians in the guise of masked dancers with…

Indic writing systems: The ancient Cham inscriptions of the Austronesian (Malayo-Polynesian) speakers who formerly inhabited southern Vietnam are also written in a script of South Indic origin.

Austronesian languages: Pre-16th century: The earliest dated inscription in Cham, the language of the Indianized kingdom of Champa in central Vietnam, bears a date of 829 ce, although some undated inscriptions may be older. An Old Malay stone inscription from central Java is dated to 832 ce and attests to the high prestige of…

Cambodia: Ethnic groups: …early 21st century was the Cham-Malay group. Known in Cambodia as Khmer Islam or Western Cham, the Cham-Malay group also maintained a high degree of ethnic homogeneity and was discriminated against under the regime of Democratic Kampuchea. Receiving only slightly better treatment than the Khmer Islam during that period were…

fox: Classification: chama (Cape fox, South African silver fox, or chama) Long-eared fox inhabiting dry areas of Southern Africa, particularly in the Kalahari desert region; weight 4 kg, body length usually less than 60 cm; coat gray. V. corsac (corsac, or steppe, fox) Small and social steppe-dwelling fox

Tanzania: Tanzania under Nyerere: …ASP under the title of Revolutionary Party (Chama cha Mapinduzi; CCM) early in 1977 was a hopeful sign but was followed by demands for greater autonomy for Zanzibar. This trend was checked for a short while when Ali Hassan Mwinyi succeeded Jumbe in 1984 and became president of the joint…

wrentit, (species Chamaea fasciata), bird of the Pacific coast of North America belonging to family Timaliidae. A fluffy brown bird about 16 cm (6.5 inches) long with a long tail, the wrentit calls harshly and sings loudly in thick brush, where pairs forage for fruit and

false cypress, (genus Chamaecyparis), any of some seven or eight species of ornamental and timber evergreen conifers (family Cupressaceae) native to North America and eastern Asia. The trees differ from the true cypresses in having smaller, rounded cones with fewer seeds. A young tree is pyramidal

false cypress: The wood of the Formosan cypress (C. formosensis), a tree more than 58 metres (190 feet) tall, is used locally for construction; it is not fragrant like the wood of other cypresses.

false cypress: …species of false cypress, the Lawson cypress, Port Orford cedar, or ginger pine (C. lawsoniana), may be more than 60 metres (200 feet) tall and 6 metres (about 20 feet) in diameter. It is a very hardy tree; over 200 forms are cultivated as ornamentals in North America and Great…

false cypress: The Nootka cypress, yellow cypress, or Alaska cedar (C. nootkatensis), also called yellow cedar, canoe cedar, Sitka cypress, and Alaska cypress, is a valuable timber tree of northwestern North America. Its pale yellow hard wood is used for boats, furniture, and paneling. Some varieties are cultivated…

false cypress: The hinoki cypress (C. obtusa), a bright-green tree 25 to 35 metres (80 to 115 feet) high, with reddish brown bark, is one of Japan’s most valuable timber trees. Its wood is used for construction, furniture, and interior work. Many varieties are cultivated for decoration and…

false cypress: The Sarawa cypress (C. pisifera) of Japan, 27 to 36 metres (90 to 120 feet) tall, has been in cultivation for centuries. It has sharp-pointed leaves, small cones, and fragrant white wood used for boxes and doors. Many horticultural varieties have been developed, most of which…

false cypress: The white cypress (C. thyoides) of North America, 21 to 27 metres (70 to 90 feet) tall, an economically important timber tree, also has many cultivated varieties. Its reddish brown fragrant wood is used for mine timbers, fence posts, and other supporting structures.

leatherleaf, (Chamaedaphne calyculata), evergreen shrub of the heath family (Ericaceae). The name is also sometimes applied to a stiff-leaved fern. C. calyculata occurs in Arctic regions and in North America as far south as Georgia. It forms large beds at the edges of swamps and boggy meadows. The

palm: Characteristic morphological features: …of regular branching (in Allagoptera, Chamaedorea, Hyphaene, Nannorrhops, Nypa, Vonitra) appear to involve equal or subequal division at the apex that results in a forking habit. The two newly formed branches may continue equally, or one may be overtopped by the other (Nannorrhops). When thickening occurs, as in the royal…

Chamaeleon, constellation in the southern sky at about 11 hours right ascension and 80° south in declination. Its brightest star is Alpha Chamaeleontis, with a magnitude of 4. This constellation was invented by Pieter Dircksz Keyser, a navigator who joined the first Dutch expedition to the East

chameleon, (family Chamaeleonidae), any of a group of primarily arboreal (tree-dwelling) Old World lizards best known for their ability to change body colour. Other characteristics of chameleons include zygodactylous feet (with toes fused into opposed bundles of two and three), acrodont dentition