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  • Arachne machine (textile equipment)

    floor covering: Unconventional carpets: tufted, knitted, and bonded: A Czechoslovakian Arachne stitch-bonding machine achieves high production rates with low pile costs, employing a fibrous web stitched on the knitting principle with yarns drawn from beams. A German Malipol machine uses knitting principles to bind pile to a backing fabric, although a later model uses unknitted…

  • arachnid (arthropod)

    Arachnid, (class Arachnida), any member of the arthropod group that includes spiders, daddy longlegs, scorpions, and (in the subclass Acari) the mites and ticks, as well as lesser-known subgroups. Only a few species are of economic importance—for example, the mites and ticks, which transmit

  • Arachnida (arthropod)

    Arachnid, (class Arachnida), any member of the arthropod group that includes spiders, daddy longlegs, scorpions, and (in the subclass Acari) the mites and ticks, as well as lesser-known subgroups. Only a few species are of economic importance—for example, the mites and ticks, which transmit

  • arachno-borane

    borane: Structure and bonding of boranes: …with one missing vertex; (3) arachno- (Greek, meaning “spider’s web”), clusters that are even more open, with boron atoms occupying n contiguous corners of an (n + 2)-cornered polyhedron—i.e., a closo-polyhedron with two missing vertices; (4) hypho- (Greek, meaning “to weave” or “a net”), the most open clusters, with boron…

  • arachno-carborane

    carborane: Reactions and synthesis of carboranes: …with boranes, the nido- and arachno-carboranes are less thermally stable and reactive toward air and chemical reagents than the corresponding closo-carboranes, most of which are stable to 400 °C (750 °F), although they may rearrange to more stable isomeric forms.

  • Arachnocampa (insect genus)

    glowworm: , the cave-dwelling Arachnocampa of New Zealand and Platyura of the central Appalachians).

  • Arachnocampa luminosa (insect)

    bioluminescence: The range and variety of bioluminescent organisms: true flies (order Diptera), notably Arachnocampa luminosa, the larva of which luminesces a greenish blue from a knob at the end of its body. The larvae dangle at the ends of filaments that hang from the ceilings of caves in New Zealand. Luminous beetles include the fireflies and the elaterid…

  • arachnodactyly (pathology)

    Marfan syndrome, rare hereditary connective tissue disorder that affects most notably the skeleton, heart, and eyes. In Marfan syndrome a genetic mutation causes a defect in the production of fibrillin, a protein found in connective tissue. Affected individuals have a tall, lanky frame and fingers

  • arachnoid granulations (anatomy)

    meninges: …processes of the arachnoid, called arachnoid villi or arachnoid granulations, are involved in the passage of cerebrospinal fluid from the subarachnoid space to the dural sinuses. Spinal anesthetics are often introduced into the subarachnoid space.

  • arachnoid mater (anatomy)

    epidural hematoma: Anatomy: The second layer, the arachnoid mater, covers the brain and pia mater but does not follow the contour of the involutions of the brain. The outermost layer, the dura mater, provides a thicker and tougher layer of protection.

  • arachnoid trabeculae (anatomy)

    meninges: …number of fine filaments called arachnoid trabeculae pass from the arachnoid through the subarachnoid space to blend with the tissue of the pia mater. The arachnoid trabeculae are embryologic remnants of the common origin of the arachnoid and pia mater, and they have the frail structure characteristic of these two…

  • arachnoid villa (anatomy)

    meninges: …processes of the arachnoid, called arachnoid villi or arachnoid granulations, are involved in the passage of cerebrospinal fluid from the subarachnoid space to the dural sinuses. Spinal anesthetics are often introduced into the subarachnoid space.

  • Arachnothera (bird)

    Spider hunter, any of several sunbird species. See

  • Arachosia (ancient Persian province)

    Arachosia, Ancient province, eastern Persian empire. The province encompassed much of what is now southern Afghanistan in the area of the city of Kandahār. It was conquered by Alexander the Great c. 330

  • Aracoma (West Virginia, United States)

    Logan, city, seat (1826) of Logan county, southwestern West Virginia, U.S. It lies along the Guyandotte River, about 40 miles (64 km) southwest of Charleston, near the Kentucky border. Laid out in 1824 and known as Lawnsville, it was chartered in 1852 and renamed Aracoma for the eldest daughter of

  • Arad (ancient city, Israel)

    ʿArad: …Negev, named for the biblical Arad, the ruins of which are visible at Tel ʿArad, about 5 12 miles (9 km) east-northeast. The book of Numbers (21:1–3) tells how the Canaanite king of ʿArad fought the Israelites during the exodus from Egypt, but his cities were “utterly destroyed” by Israel’s…

  • ʿArād (Bahrain)

    Al-Muḥarraq: …the village and fort of ʿArād; the fort was built by the Omanis during the brief (1799–1809) occupation of the country by the sultanate of Muscat and Oman. Pop. (2001) 91,307.

  • Arad (county, Romania)

    Arad, judeƫ (county), western Romania, bounded on the west by Hungary. The Mureş and Crişul Alb rivers flow westward through the county, while the Western Carpathians, including the Zărand and Codru-Moma ranges, lie in the eastern portion. Settlements are found in the lowlands and intermontane

  • Arad (Romania)

    Arad, city, capital of Arad judeƫ (county), western Romania. It is located in the lower Mureş River valley close to the Hungarian border, about 30 miles (50 km) north-northeast of Timişoara. The city has a large Magyar (Hungarian) population. The site became a Roman outpost south of the river at

  • ʿArad (Israel)

    ʿArad, town, southern Israel, in the northeast Negev, named for the biblical Arad, the ruins of which are visible at Tel ʿArad, about 5 12 miles (9 km) east-northeast. The book of Numbers (21:1–3) tells how the Canaanite king of ʿArad fought the Israelites during the exodus from Egypt, but his

  • Arad, Michael (Israeli-American architect)

    September 11 attacks: One World Trade Center and the National September 11 Memorial and Museum: …plaza were designed by architects Michael Arad and Peter Walker, winners of a design competition that featured 5,201 submissions from 63 countries.

  • ʿArad, Tel (archaeological site, Israel)

    ʿArad: …of which are visible at Tel ʿArad, about 5 12 miles (9 km) east-northeast. The book of Numbers (21:1–3) tells how the Canaanite king of ʿArad fought the Israelites during the exodus from Egypt, but his cities were “utterly destroyed” by Israel’s armies. The city’s name appears on the Temple…

  • Aradhana (film by Samanta [1969])

    Kishore Kumar: …came in 1969: the film Aradhana catapulted Rajesh Khanna to superstardom, and Kumar, who had lent his voice to Khanna, became the leading playback singer of the Hindi film industry. Kumar retained that position until he died.

  • Aradidae (insect)

    Flat bug, (family Aradidae), any of about 1,000 species of small, flat, dark-coloured insects (order Heteroptera) that are usually found under stones, in crevices in dead or dying trees, or under loose bark. Nearly all flat bugs range in size from 3 to 11 mm (0.12 to 0.43 inch) and feed on fungi

  • Arados (island, Syria)

    Jazīrat Arwād, island in the eastern Mediterranean off the Syrian coastal town of Ṭarṭūs. Originally settled by the Phoenicians in the early 2nd millennium bc, it formed an excellent base for their commercial operations, into both the Orontes Valley and the hinterland as far as the Euphrates, and

  • Araecerus fasciculatus (insect)

    fungus weevil: The coffee bean weevil (Araecerus fasciculatus) is an important pest.

  • ʿArafāt, Mount (hill, Saudi Arabia)

    hajj: …the holy places outside Mecca—Jabal al-Raḥmah, Muzdalifah, and Minā—and sacrifices an animal in commemoration of Abraham’s sacrifice. Male pilgrims’ heads are then usually shaved, and female pilgrims remove a lock of hair. After throwing seven stones at each of the three pillars at Minā on three successive days (the…

  • Arafat, Raed (Romanian government official)

    Romania: New constitution: In January 2012 Raed Arafat, a popular health minister, resigned over the matter, and violent street protests left more than 50 people injured. Arafat was ultimately reinstated in his position, but by that time the demonstrations had begun to focus on wider issues related to the government’s austerity…

  • ʿArafāt, Yāsir (Palestinian leader)

    Yasser Arafat, president (1996–2004) of the Palestinian Authority (PA), chairman (1969–2004) of the Palestine Liberation Organization (PLO), and leader of Fatah, the largest of the constituent PLO groups. In 1993 he led the PLO to a peace agreement with the Israeli government. Arafat and Yitzhak

  • Arafat, Yasser (Palestinian leader)

    Yasser Arafat, president (1996–2004) of the Palestinian Authority (PA), chairman (1969–2004) of the Palestine Liberation Organization (PLO), and leader of Fatah, the largest of the constituent PLO groups. In 1993 he led the PLO to a peace agreement with the Israeli government. Arafat and Yitzhak

  • Arafura Sea (sea, Pacific Ocean)

    Arafura Sea, shallow sea of the western Pacific Ocean, occupying 250,000 square miles (650,000 square km) between the north coast of Australia (Gulf of Carpentaria) and the south coast of New Guinea. It merges with the Timor Sea on the west and the Banda and Ceram seas on the northwest. The Torres

  • Arafura Shelf (Pacific Ocean)

    Sahul Shelf: …are the shallow 360,000-square-mile (930,000-square-km Arafura Shelf, covered by the Arafura Sea and Gulf of Carpentaria; the Sahul Shelf (120,000 square miles [310,800 square km]) under the Timor Sea; and the Rowley Shelf (120,000 square miles [310,800 square km]) underlying a part of the northwest Indian Ocean extending to North…

  • Aragac, Gora (mountain, Armenia)

    Mount Aragats, mountain in Armenia, northwest of Yerevan and north of the Ararat Plain. The highest point in both Armenia and the Lesser Caucasus range (13,418 feet [4,090 m]), Aragats is a circular, shieldlike mountain composed of both lavas and tufas. A volcanic cone of recent geologic age lies

  • Aragani (Indonesian chief minister)

    Kertanagara: Legacy: …Raganatha (Kebo Arema) and appointed Aragani, who could serve him delicious food every day. Aragani is also known as Kebo Tengali, though some scholars say these were two separate men. He drank palm wine and held orgies, which eventually led to his death—he was killed by his enemies during one…

  • Aragats, Gora (mountain, Armenia)

    Mount Aragats, mountain in Armenia, northwest of Yerevan and north of the Ararat Plain. The highest point in both Armenia and the Lesser Caucasus range (13,418 feet [4,090 m]), Aragats is a circular, shieldlike mountain composed of both lavas and tufas. A volcanic cone of recent geologic age lies

  • Aragats, Mount (mountain, Armenia)

    Mount Aragats, mountain in Armenia, northwest of Yerevan and north of the Ararat Plain. The highest point in both Armenia and the Lesser Caucasus range (13,418 feet [4,090 m]), Aragats is a circular, shieldlike mountain composed of both lavas and tufas. A volcanic cone of recent geologic age lies

  • Aragh (island, Vanuatu)

    Pentecost, island of Vanuatu, in the southwestern Pacific Ocean, about 60 miles (100 km) southeast of Espiritu Santo island. Volcanic in origin, it occupies 169 square miles (438 square km) and has a central mountain ridge that rises to 3,104 feet (946 metres) at Mount Vulmat. Many permanent

  • Arago (anthropological and archaeological site, France)

    Arago, site of paleoanthropological excavation near the town of Tautavel in the French Pyrenees where more than 50 specimens of archaic Homo were recovered from 1964 to 1974. On the basis of the age of animal (particularly rodent) fossils found with them, the remains have been dated to 300,000 to

  • Arago (planetary ring of Neptune)

    Neptune: The ring system: Le Verrier, Lassell, Arago, and Galatea, in order of increasing distance from the planet—lack the nonuniformity in density exhibited by Adams. Le Verrier, which is about 110 km (70 miles) in radial width, closely resembles the nonarc regions of Adams. Similar to the relationship between the moon Galatea…

  • Arago remains (paleontology)

    Arago: The human remains include two robust and well-preserved jaws that are quite different in size, probably because males were larger than females. The 1971 discovery of a partial skull with a complete face is one of the best-known European fossil hominins (members of the human lineage).…

  • Arago’s spot (diffraction)

    Poisson’s spot, diffraction pattern produced by a small spherical object in the path of parallel light rays. French physicist Augustin-Jean Fresnel presented much of his work on diffraction as an entry to a competition on the subject sponsored by the French Academy of Sciences in 1818. The

  • Arago, Dominique-François-Jean (French physicist)

    François Arago, French physicist who discovered the principle of the production of magnetism by rotation of a nonmagnetic conductor. He also devised an experiment that proved the wave theory of light and engaged with others in research that led to the discovery of the laws of light polarization.

  • Arago, François (French physicist)

    François Arago, French physicist who discovered the principle of the production of magnetism by rotation of a nonmagnetic conductor. He also devised an experiment that proved the wave theory of light and engaged with others in research that led to the discovery of the laws of light polarization.

  • Aragon (region, Spain)

    Aragon, comunidad autónoma (autonomous community) and historical region of northeastern Spain. It encompasses the provincias (provinces) of Huesca, Zaragoza, and Teruel. Aragon is bounded by France to the north and by the autonomous communities of Catalonia to the east, Valencia to the southeast,

  • Aragón (region, Spain)

    Aragon, comunidad autónoma (autonomous community) and historical region of northeastern Spain. It encompasses the provincias (provinces) of Huesca, Zaragoza, and Teruel. Aragon is bounded by France to the north and by the autonomous communities of Catalonia to the east, Valencia to the southeast,

  • Aragon River (river, Spain)

    Aragon River, river, northern Spain. It rises in the central Pyrenees and flows, generally southwest, into the Ebro River in Navarra. The river, used for irrigation and hydroelectric power, is about 80 miles (129 km) long; its chief tributary is the Arga

  • Aragón, Guillermo García (Mexican general)

    Lázaro Cárdenas: …revolutionary army led by General Guillermo García Aragón, and within a year he had risen to the rank of captain. When the revolutionary forces split into opposing factions, he remained loyal to Carranza, whose army triumphed in 1920. In that year Cárdenas was appointed general, the highest rank in the…

  • Aragon, Kingdom of (medieval kingdom, Spain)

    Aragon: History: …roughly coextensive with the historical kingdom of Aragon. This principality had its origins in 1035, when Sancho III (the Great) of Navarre left to his third son, Ramiro I, the small Pyrenean county of Aragon and established it as an independent kingdom. To this mountain domain Ramiro added the counties…

  • Aragon, Louis (French author)

    Louis Aragon, French poet, novelist, and essayist who was a political activist and spokesperson for communism. Through the Surrealist poet André Breton, Aragon was introduced to avant-garde movements such as Dadaism. Together with Philippe Soupault, he and Breton founded the Surrealist review

  • Aragon, Río (river, Spain)

    Aragon River, river, northern Spain. It rises in the central Pyrenees and flows, generally southwest, into the Ebro River in Navarra. The river, used for irrigation and hydroelectric power, is about 80 miles (129 km) long; its chief tributary is the Arga

  • Aragonés, Luis (Spanish association football player and manager)

    Luis Aragonés, (José Luis Aragonés Suárez Martínez), Spanish association football (soccer) player and manager (born July 28, 1938, Hortaleza, near Madrid, Spain—died Feb. 1, 2014, Madrid), built Spain into a world football power, guiding the national team to a 22-game winning streak that culminated

  • aragonite (mineral)

    Aragonite, widespread mineral, the stable form of calcium carbonate (CaCO3) at high pressures. It may be distinguished from calcite, the commoner form of calcium carbonate, by its greater hardness and specific gravity. Aragonite is always found in deposits formed at low temperatures near the

  • aragonite group (mineralogy)

    mineral: Carbonates: type: calcite, aragonite, and dolomite. The copper carbonates azurite and malachite are the only notable hydrous varieties.

  • aragoto (Kabuki genre)

    Ichikawa Family: …a playwright who originated the aragoto (“rough business”) style of heroic drama, the specialty of the Ichikawa family. The heroic dramas feature bold, handsome, idealized warriors with exaggerated and magical powers and childlike, uncomplicated natures. The warrior’s face is marked with red, blue, and black lines, and he carries a…

  • Aragua (state, Venezuela)

    Aragua, estado (state), northern Venezuela. It is bounded to the north by the Caribbean Sea, to the east by the Distrito Federal and Miranda state, to the south by Guárico state, and to the west by Carabobo state. Aragua consists largely of two Andean ranges separated by an intermontane basin, in

  • Araguaia National Park (national park, Brazil)

    Bananal Island: It became the Araguaia National Park in 1959 and includes an airstrip. It is the largest known inland river island in the world and a source of ecotourism for the region.

  • Araguaia River (river, Brazil)

    Araguaia River, river, central Brazil. It rises on the Brazilian Highlands near Alto Araguaia town in eastern Mato Grosso estado (state) and flows north-northeast for 1,632 miles (2,627 km) to its junction with the Tocantins River, at São João do Araguaia. The river’s upper course forms the

  • Araguaia, Rio (river, Brazil)

    Araguaia River, river, central Brazil. It rises on the Brazilian Highlands near Alto Araguaia town in eastern Mato Grosso estado (state) and flows north-northeast for 1,632 miles (2,627 km) to its junction with the Tocantins River, at São João do Araguaia. The river’s upper course forms the

  • Araguaian boto (mammal)

    river dolphin: The Araguaian boto (I. araguaiaensis), which is physically similar to the Amazon river dolphin, was classified as a separate species in 2014 on the basis of its distinct DNA. This species inhabits the Araguaia-Tocantins river system in Brazil.

  • Araguaian river dolphin (mammal)

    river dolphin: The Araguaian boto (I. araguaiaensis), which is physically similar to the Amazon river dolphin, was classified as a separate species in 2014 on the basis of its distinct DNA. This species inhabits the Araguaia-Tocantins river system in Brazil.

  • Araguari (Brazil)

    Araguari, city, western Minas Gerais estado (state), Brazil, lying on the Jordão River, a tributary of the Paranaíba River, at 3,051 feet (930 metres) above sea level. Formerly called Freguesia do Brejo Alegre, the settlement was made the seat of a municipality in 1882 and was elevated to city rank

  • arahant (Buddhism)

    Arhat, (Sanskrit: “one who is worthy”) in Buddhism, a perfected person, one who has gained insight into the true nature of existence and has achieved nirvana (spiritual enlightenment). The arhat, having freed himself from the bonds of desire, will not be reborn. The state of an arhat is considered

  • Arai Hakuseki (Japanese statesman)

    Arai Hakuseki, Japanese statesman and scholar who was a chief adviser to the Tokugawa shoguns in the early years of the 18th century. Born into an impoverished samurai, or warrior, family, Arai educated himself under conditions of extreme hardship. He found employment in 1682 under Hotta Masatoshi

  • Arāk (Iran)

    Arāk, city, capital of Markazī province, northwestern Iran. It was founded as Solṭānābād in 1808 by the Qājār ruler Fatḥ ʿAlī Shāh. By the end of the century, it had become an important centre of carpet production. During the reign of Reza Shah Pahlavi (1925–41), the local name Arāk was adopted as

  • Arakan (state, Myanmar)

    Arakan, coastal geographic region in southern Myanmar (Burma). It comprises a long, narrow strip of land along the eastern coast of the Bay of Bengal and stretches from the Nāf estuary on the border of the Chittagong Hills area (in Bangladesh) in the north to the Gwa River in the south. The Arakan

  • Arakan (pagoda, Myanmar)

    Mandalay: The Mahamuni, or Arakan, pagoda, south of the city, is often considered Mandalay’s most famous. Its brass Buddha (12 feet [3.7 metres] high), believed to be of great antiquity, is one of numerous spoils of war brought from the Arakan Coast in 1784 by King Bodawpaya.…

  • Arakan Mountains (mountains, Myanmar)

    Rakhine Mountains, mountain arc in western Myanmar (Burma), between the Rakhine (Arakan) coast and the Irrawaddy River valley. The arc extends northward for about 600 miles (950 km) from Cape Negrais (Myanmar) to Manipur (India) and includes the Naga, Chin, Mizo (Lushai), and Patkai hills. The

  • Arakanese (people)

    Arakanese, ethnic group centred in the Arakan coastal region of Myanmar (Burma), in the state of Rakhine. Most Arakanese speak an unusual variety of the Burmese language that includes significant differences from Burmese pronunciation and vocabulary. An independent Arakanese kingdom was probably

  • Arakawa (Japanese-born conceptual artist and designer)

    Arakawa, (Shusaku Arakawa), Japanese-born conceptual artist and designer (born July 6, 1936, Nagoya, Japan—died May 18, 2010, New York, N.Y.), produced work in a wide array of media, much of it in association with his wife, Madeline Gins, and guided by their philosophy of Reversible Destiny, which

  • Arakawa Drainage Channel (channel, Japan)

    Tokyo-Yokohama Metropolitan Area: Site: …flood the city until the Arakawa Drainage Channel, roughly parallel to the Sumida and a short distance to the east of it, was put through in the years before the 1923 earthquake.

  • Arakawa Toyozō (Japanese explorer)

    Tajimi: …1930 a native of Tajimi, Arakawa Toyozō, rediscovered some Mino kiln sites nearby and helped to revive the old processes. (In 1955 the Japanese government honoured Arakawa by naming him one of the nation’s Living National Treasures.) Modern Tajimi is a major producer of ceramic tile and dinnerware. Tajimi contains…

  • Arakawa, Shizuka (Japanese figure skater)

    Olympic Games: Turin, Italy, 2006: …the bronze medal after Japan’s Arakawa Shizuka gave a dazzling performance to win her nation’s first gold medal in that event.

  • Arakawa, Shusaku (Japanese-born conceptual artist and designer)

    Arakawa, (Shusaku Arakawa), Japanese-born conceptual artist and designer (born July 6, 1936, Nagoya, Japan—died May 18, 2010, New York, N.Y.), produced work in a wide array of media, much of it in association with his wife, Madeline Gins, and guided by their philosophy of Reversible Destiny, which

  • Arakcheyev, Aleksey Andreyevich, Graf (Russian general and statesman)

    Aleksey Andreyevich, Graf Arakcheyev, military officer and statesman whose domination of the internal affairs of Russia during the last decade of Alexander I’s reign (1801–25) caused that period to be known as Arakcheyevshchina. The son of a minor landowner, Arakcheyev studied at the Artillery and

  • Araki Katsumochi (Japanese painter)

    Iwasa Matabei, Japanese painter of the early Tokugawa period (1603–1867). Upon the defeat and suicide of his soldier-father, Araki Murashige, he took refuge in the Hongan Temple in Kyōto with his nurse and later assumed his mother’s family name, Iwasa. He studied painting with different masters, b

  • Araki Sadao (Japanese general and statesman)

    Araki Sadao, Japanese general, statesman, and a leader of the Kōdō-ha (Imperial Way) faction, an ultranationalistic group of the 1930s. He strongly advocated the importance of character building through rigid mental and physical discipline, whereas the dominant Tōseiha (Control) faction emphasized

  • Araks River (river, Asia)

    Aras River, river rising south of Erzurum in the Bingöl Dağları (mountains) of Turkey; it flows eastward, forming for approximately 275 miles (440 km) the international boundary between Armenia and Azerbaijan on the north and Turkey and Iran on the south. Below the eastern boundary of Armenia, the

  • Aral Karakum (desert, Kazakhstan)

    Karakum Desert: …Aral Sea is called the Aral Karakum.

  • Aral Sea (lake, Central Asia)

    Aral Sea, a once-large saltwater lake of Central Asia. It straddles the boundary between Kazakhstan to the north and Uzbekistan to the south. The shallow Aral Sea was once the world’s fourth largest body of inland water. The remnants of it nestle in the climatically inhospitable heart of Central

  • Aral Tengizi (lake, Central Asia)

    Aral Sea, a once-large saltwater lake of Central Asia. It straddles the boundary between Kazakhstan to the north and Uzbekistan to the south. The shallow Aral Sea was once the world’s fourth largest body of inland water. The remnants of it nestle in the climatically inhospitable heart of Central

  • Araldite (chemical compound)

    major industrial polymers: Epoxies (epoxy resins): Epoxies are polyethers built up from monomers in which the ether group takes the form of a three-membered ring known as the epoxide ring:

  • aralia ivy (plant)

    fatsia: …(Hedera helix) to produce the tree ivy, or aralia ivy (× Fatshedera lizei), an intergeneric cross, a most uncommon botanical occurrence.

  • Aralia nudicaulis (plant)

    Araliaceae: Wild sarsaparilla (Aralia nudicaulis) has an aromatic root that is used as a substitute for sarsaparilla. Ginseng root, from Panax ginseng, has long been used by the Chinese in the treatment of various diseases; its American relative, Panax quinquefolium (see photograph), is used in the…

  • Aralia racemosa (plant, Aralia species)

    spikenard: American spikenard (A. racemosa) is a North American member of the ginseng family (Araliaceae). The plant is characterized by large spicy-smelling roots and is cultivated as an ornamental. It grows 3.5 metres (11 feet) tall and has leaves divided into three heart-shaped parts. The flowers…

  • Aralia spinosa (tree)

    Angelica tree , (species Aralia spinosa), prickly-stemmed shrub or tree, of the ginseng family (Araliaceae), that can reach a height of 15 m (about 50 feet). Its leaves are large, with leaflets arranged feather-fashion and often prickly. The angelica tree is native to low-lying areas from Delaware

  • Araliaceae (plant family)

    Araliaceae, the ginseng family of flowering plants, in the order Apiales, comprising approximately 700 species centred in Southeast Asia and tropical America. Most members are shrubs or trees, though there are a number of climbers and a few herbs. The family has large, usually alternate, compound

  • Aralidium (plant genus)

    Apiales: Other families: …Himalayan region and western China; Aralidium, with one species in western Malesia; and Melanophylla, with seven species in Madagascar. Myodocarpaceae has 19 species in two genera, Delarbrea and Myodocarpus, all of which are located in New Caledonia.

  • Aralo-Caspian group (linguistic group)

    Turkic languages: Classification: The South Kipchak group (NWs) consists of Kazakh (spoken in Kazakhstan, Xinjiang, and so on), its close relative Karakalpak (mainly Karakalpakstan), Nogay (Circassia, Dagestan), and Kyrgyz (Kyrgyzstan, China). The North Kipchak group (NWn) consists of Tatar (Tatarstan, Russia; China; Romania; Bulgaria; and so on), Bashkir (Bashkortostan,…

  • Aram (ancient country, Middle East)

    Aram, Ancient country, Middle East, southwestern Asia. It extended eastward from the Anti-Lebanon Mountains to beyond the Euphrates River. It was named for the Aramaeans, who emerged from the Syrian desert to invade Syria and Upper Mesopotamia (c. 11th century bc) and who built numerous

  • Aram, Eugene (English scholar)

    Eugene Aram, noted English scholar and murderer, whose notoriety was romanticized in a ballad by Thomas Hood and in the novel Eugene Aram (1832), by Bulwer-Lytton. In 1745, when Aram was schoolmaster at Knaresborough, a man named Daniel Clark, his intimate friend, after obtaining a considerable

  • Aramaean (people)

    Aramaean, one of a confederacy of tribes that spoke a North Semitic language (Aramaic) and, between the 11th and 8th century bc, occupied Aram, a large region in northern Syria. In the same period some of these tribes seized large tracts of Mesopotamia. In the Old Testament the Aramaeans are

  • Aramaic alphabet

    Aramaic alphabet, major writing system in the Middle East in the latter half of the 1st millennium bce. Derived from the North Semitic script, the Aramaic alphabet was developed in the 10th and 9th centuries bce and came into prominence after the conquest of the Aramaean states by Assyria in the

  • Aramaic language

    Aramaic language, Semitic language of the Northern Central, or Northwestern, group that was originally spoken by the ancient Middle Eastern people known as Aramaeans. It was most closely related to Hebrew, Syriac, and Phoenician and was written in a script derived from the Phoenician alphabet.

  • Arambillet Veiga, Fernando Casado (Spanish actor)

    Fernando Rey, (FERNANDO CASADO ARAMBILLET VEIGA), Spanish actor (born Sept. 20, 1917, La Coruña, Spain—died March 9, 1994, Madrid, Spain), excelled at portraying suave, complex villains, especially in a series of motion pictures directed by Luis Buñuel in the 1970s, but he was perhaps best known t

  • Aramburu, Pedro Eugenio (president of Argentina)

    Argentina: Attempts to restore constitutionalism, 1955–66: …in November 1955 by General Pedro Eugenio Aramburu. The new administration was a military dictatorship that sought to restore constitutional government. Taking a fiercely anti-Peronist stance, it dissolved Perón’s old party and placed the labour unions under state administration. The Peronists wielded considerable influence on the factions that were competing…

  • aramid (chemical compound)

    Aramid, any of a series of synthetic polymers (substances made of long chainlike multiple-unit molecules) in which repeating units containing large phenyl rings are linked together by amide groups. Amide groups (CO-NH) form strong bonds that are resistant to solvents and heat. Phenyl rings (or

  • Aramidae (bird family)

    limpkin: …sole member of the family Aramidae (order Gruiformes). The bird is about 70 cm (28 inches) long and is coloured brown with white spots. The limpkin’s most distinctive characteristics are its loud, prolonged, wailing cry and its peculiar halting gait. The species ranges the lowlands from the southeastern United States,…

  • aramina (plant)

    Urena, (Urena lobata), plant of the family Malvaceae; its fibre is one of the bast fibre group. The plant, probably of Old World origin, grows wild in tropical and subtropical areas throughout the world. Urena has long been used for its fibre in Brazil, but it has been slow in achieving importance

  • Aramis (anthropological and archaeological site, Ethiopia)

    Aramis, site of paleoanthropological excavations in the Awash River valley in the Afar region of Ethiopia, best known for its 4.4-million-year-old fossils of Ardipithecus ramidus found in 1992 and named in 1994. Ardipithecus is one of the earliest well-documented examples that resembles what would

  • Aramis (fictional character)

    Aramis, fictional character, one of the swashbuckling heroes of The Three Musketeers by Alexandre Dumas père. With the other two musketeers, Athos and Porthos, Aramis fights against various enemies, notably Cardinal Richelieu, during the reigns of the French kings Louis XIII and Louis

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