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  • alcázar (Spanish fortress)

    Alcazar, any of a class of fortified structures built in the 14th and 15th centuries in Spain. (The term is derived from the Arabic word al-qa?r, meaning “castle,” or “fortress.”) As the Spanish efforts to drive out the Moors became more strenuous, the dual need for fortification and an imposing

  • Alcázar de San Juan (Spain)

    Alcázar de San Juan, town, Ciudad Real provincia (province), in the comunidad autónoma (autonomous community) of Castile-La Mancha, central Spain. It lies on the high southern Meseta Central at 2,135 feet (650 metres) above sea level. Known to the Romans as Alces, the town was renamed al-Qa?r (“the

  • Alcázar Palace (palace, Sevilla, Spain)

    Sevilla: City layout: …the Moorish period is the Alcázar Palace, which lies near the cathedral. The Alcázar was begun in 1181 under the Almohads but was continued under the Christians; like the cathedral, it exhibits both Moorish and Gothic stylistic features. A decagonal brick tower, the Torre del Oro, once part of the…

  • Alcazarquivir (Morocco)

    Ksar el-Kebir, (Arabic: “Great Castle”) city, northern Morocco. It lies along the Loukkos River. Originally a Greek and Carthaginian colony, the site was occupied by the Romans, whose ruins remain, and by the Byzantines. The Arab town, which was founded in the 8th century, has one of the oldest

  • Alcedinidae (bird)

    Kingfisher, any of about 90 species of birds in three families (Alcedinidae, Halcyonidae, and Cerylidae), noted for their spectacular dives into water. They are worldwide in distribution but are chiefly tropical. Kingfishers, ranging in length from 10 to 42 cm (4 to 16.5 inches), have a large head,

  • Alcedo atthis (bird)

    kingfisher: Many species, such as the common kingfisher (Alcedo atthis), have large populations and vast geographic ranges. However, ecologists have observed that the populations of some species endemic to specialized habitats in Southeast Asia and the islands of the tropical Pacific Ocean are in decline. Aggressive logging activities resulting in the…

  • Alcedo euryzona (bird)

    kingfisher: …in several species, including the blue-banded kingfisher (A. euryzona), the Sulawesi kingfisher (Ceyx fallax), the brown-winged kingfisher (Pelargopsis amauropterus), and some of the paradise kingfishers (Tanysiptera) of New Guinea.

  • Alcelaphini (mammal tribe)

    antelope: Classification: waterbucks) Tribe Alcelaphini (includes hartebeests, wildebeests, and topis) Assorted Referencesmajor reference

  • Alcelaphus (mammal genus)

    hartebeest: …recognized as separate species of Alcelaphus.

  • Alcelaphus buselaphus (mammal)

    Hartebeest, (Alcelaphus buselaphus), large African antelope (family Bovidae) with an elongated head, unusual bracket-shaped horns, and high forequarters sloping to lower hindquarters—a trait of the tribe Alcelaphini, which also includes wildebeests, the topi, and the blesbok. DNA studies indicate

  • Alcelaphus buselaphus caama (mammal)

    hartebeest: The red hartebeest (A. buselaphus caama) of southwest Africa is the most colourful, with extensive black markings setting off a white belly and rump; it has a more elongated head and high horns that curve in a complex pattern and are joined at the base. The…

  • Alcelaphus buselaphus cokei (mammal)

    hartebeest: One well-known variety, Coke’s hartebeest, or the kongoni (A. buselaphus cokei), of East Africa, is the plainest and smallest subspecies, measuring 117 cm (46 inches) high and weighing 142 kg (312 pounds). This subspecies is lion-coloured, with no conspicuous markings except a white rump patch; it has a…

  • Alcelaphus buselaphus lichtensteinii (mammal)

    hartebeest: Lichtenstein’s hartebeest (A. buselaphus lichtensteinii), which inhabits the miombo woodland zone of eastern and southern Africa, has also been treated as a separate species (Alcelaphus lichtensteinii). The preferred habitat of the hartebeest is acacia savanna, though Lichtenstein’s hartebeest lives on the grassland-woodland ecotone in the…

  • Alcelaphus buselaphus tora (mammal)

    hartebeest: The largest hartebeest is the western hartebeest (A. buselaphus tora), which weighs 228 kg (502 pounds) and stands 143 cm (56 inches) tall. Females are 12 percent smaller than males, with smaller but similarly shaped horns.

  • Alces (Spain)

    Alcázar de San Juan, town, Ciudad Real provincia (province), in the comunidad autónoma (autonomous community) of Castile-La Mancha, central Spain. It lies on the high southern Meseta Central at 2,135 feet (650 metres) above sea level. Known to the Romans as Alces, the town was renamed al-Qa?r (“the

  • Alces alces (mammal)

    Moose, (Alces alces), the largest member of the deer family Cervidae (order Artiodactyla). Moose are striking in appearance because of their towering size, black colour, long legs, pendulous muzzle, and dangling hairy dewlap (called a bell) and the immense, wide, flat antlers of old bulls. The name

  • Alces alces alces (mammal)

    moose: …several Eurasian subspecies, including the European moose (A. alces alces); the Siberian, or Yakut, moose (A. alces pfizenmayeri); the west Siberian, or Ussuri, moose (A. alces cameloides); and the east Siberian, or Kolyma, moose (A. alces buturlini). In addition to differences in geographical distribution, the different subspecies of moose are…

  • Alces alces americana (mammal)

    moose: …subspecies are recognized, including the eastern moose (A. alces americana), which inhabits eastern Canada and the northeastern United States; the northwestern moose (A. alces andersoni), which inhabits central Canada and North Dakota, Minnesota, and northern Michigan; the Shiras moose (A. alces shirasi), which inhabits the Rocky Mountains in the United…

  • Alces alces andersoni (mammal)

    moose: …the northeastern United States; the northwestern moose (A. alces andersoni), which inhabits central Canada and North Dakota, Minnesota, and northern Michigan; the Shiras moose (A. alces shirasi), which inhabits the Rocky Mountains in the United States and Canada; and the Alaskan moose (A. alces gigas), which inhabits Alaska and northwestern…

  • Alces alces buturlini (mammal)

    moose: alces cameloides); and the east Siberian, or Kolyma, moose (A. alces buturlini). In addition to differences in geographical distribution, the different subspecies of moose are further distinguished by features such as size, pelage, and antler characteristics. The differences in regional body sizes appears to reflect adaptation to local conditions.…

  • Alces alces cameloides (mammal)

    moose: alces pfizenmayeri); the west Siberian, or Ussuri, moose (A. alces cameloides); and the east Siberian, or Kolyma, moose (A. alces buturlini). In addition to differences in geographical distribution, the different subspecies of moose are further distinguished by features such as size, pelage, and antler characteristics. The differences in…

  • Alces alces gigas (mammal)

    moose: …States and Canada; and the Alaskan moose (A. alces gigas), which inhabits Alaska and northwestern Canada. Although not widely accepted, some classifications also recognize several Eurasian subspecies, including the European moose (A. alces alces); the Siberian, or Yakut, moose (A. alces pfizenmayeri); the west Siberian, or Ussuri, moose (A. alces

  • Alces alces pfizenmayeri (mammal)

    moose: alces alces); the Siberian, or Yakut, moose (A. alces pfizenmayeri); the west Siberian, or Ussuri, moose (A. alces cameloides); and the east Siberian, or Kolyma, moose (A. alces buturlini). In addition to differences in geographical distribution, the different subspecies of moose are further distinguished by features such as…

  • Alces alces shirasi (mammal)

    moose: …Minnesota, and northern Michigan; the Shiras moose (A. alces shirasi), which inhabits the Rocky Mountains in the United States and Canada; and the Alaskan moose (A. alces gigas), which inhabits Alaska and northwestern Canada. Although not widely accepted, some classifications also recognize several Eurasian subspecies, including the European moose (A.…

  • Alces americana (mammal)

    Moose, (Alces alces), the largest member of the deer family Cervidae (order Artiodactyla). Moose are striking in appearance because of their towering size, black colour, long legs, pendulous muzzle, and dangling hairy dewlap (called a bell) and the immense, wide, flat antlers of old bulls. The name

  • Alceste (fictional character)

    Alceste, title character of Molière’s comedy Le Misanthrope (first performed 1666). Alceste’s disgust with the superficialities and deceits of his fellows, culminating in his withdrawal from society, provides the play’s mild dramatic

  • Alceste (opera by Gluck)

    Christoph Willibald Gluck: The late works: …Calzabigi, Orfeo ed Euridice (1762), Alceste (1767), and Paride ed Elena (1770).

  • Alcestis (Greek mythology)

    Alcestis, in Greek legend, the beautiful daughter of Pelias, king of Iolcos. She is the heroine of the eponymous play by the dramatist Euripides (c. 484–406 bce). According to legend, the god Apollo helped Admetus, son of the king of Pherae, to harness a lion and a boar to a chariot in order to win

  • Alcestis (play by Euripides)

    Alcestis, drama by Euripides, performed in 438 bce. Though tragic in form, the play ends happily. It was performed in place of the satyr play that usually ended the series of three tragedies that were produced for festival competition. The story concerns the imminent death of King Admetus, who is

  • Alchemilla (plant)

    Lady’s mantle, (genus Alchemilla), genus of some 300 species of herbaceous perennials within the rose family (Rosaceae). A number of species are used as ornamental plants in borders and cottage gardens, and some have historically been used in herbal remedies. Lady’s mantles are typically

  • Alchemilla mollis (plant)

    lady's mantle: …the most common species is Alchemilla mollis, which is widely distributed in Eurasia and has been introduced to North America as an ornamental. It grows up to 60 cm (2 feet) tall on grasslands and rocky soils. The broad leaves are borne on long stalks, have shallow, rounded lobes and…

  • Alchemist, The (play by Jonson)

    The Alchemist, comedy in five acts by Ben Jonson, performed in 1610 and published in 1612. The play concerns the turmoil of deception that ensues when Lovewit leaves his London house in the care of his scheming servant, Face. With the aid of a fraudulent alchemist named Subtle and his companion,

  • Alchemist, The (novel by Coelho)

    Paulo Coelho: …Coelho published O alquimista (The Alchemist), a mystical account of an Andalusian shepherd boy’s journey across North Africa in search of treasure. After being dropped by its first publisher, the book was reissued to great success in Brazil and—in translation—abroad. His memoir As Valkírias (1992; The Valkyries) recounts a…

  • alchemy (pseudoscience)

    Alchemy, a form of speculative thought that, among other aims, tried to transform base metals such as lead or copper into silver or gold and to discover a cure for disease and a way of extending life. Alchemy was the name given in Latin Europe in the 12th century to an aspect of thought that

  • Alchemy of Happiness, The (work by al-Ghazālī)

    Persian literature: Classical prose: The Kīmiya-yi sa?ādat (after 1096; The Alchemy of Happiness) by the theologian and mystic al-Ghazālī, for instance, is one such work: it is a condensed version of the author’s own work in Arabic on Islamic ethics, the I?yā? ?ulūm al-dīn (The Revival of Religious Sciences). Written in a lively conversational…

  • alcheringa (Australian Aboriginal mythology)

    The Dreaming, mythological period of time that had a beginning but no foreseeable end, during which the natural environment was shaped and humanized by the actions of mythic beings. Many of these beings took the form of human beings or of animals (“totemic”); some changed their forms. They were

  • Alchevsk (Ukraine)

    Alchevsk, city, eastern Ukraine. It lies along the railway from Luhansk to Debaltseve. Alchevsk was founded in 1895 with the establishment of the Donetsko-Yuryevsky ironworks. The plant developed into a large, integrated ironworks and steelworks, which was expanded greatly in the 1950s and ’60s.

  • Alchian, Armen A. (American economist)

    Armen A. Alchian, American economist whose teachings countered some of the popular economic theories of the late 20th century, such as those regarding labour costs or the implications of property ownership. Alchian studied at Stanford University, earning a B.A. (1936) and a Ph.D. (1943). In 1946 he

  • Alchian, Armen Albert (American economist)

    Armen A. Alchian, American economist whose teachings countered some of the popular economic theories of the late 20th century, such as those regarding labour costs or the implications of property ownership. Alchian studied at Stanford University, earning a B.A. (1936) and a Ph.D. (1943). In 1946 he

  • Alchymia (work by Libavius)

    Andreas Libavius: …writing, the most important was Alchymia (1606; “Alchemy”), a work that established the tradition for 17th-century French chemistry textbooks. Although he was a firm believer in the transmutation of base metals into gold, Libavius was renowned for his vitriolic attacks against the mysticism and secretiveness of his fellow alchemists. Libavius…

  • Alciato, Andrea (Italian lawyer and humanist)

    emblem book: …16th-century Italian lawyer and humanist Andrea Alciato, whose Emblemata was first printed in Augsburg in 1531. It was written in Latin and later appeared in translation and in more than 150 editions. The Plantin press specialized in emblem literature, publishing at Antwerp in 1564 the Emblemata of the Hungarian physician…

  • Alcibiades (fictional character)

    Timon of Athens: …to Alcibiades’ mistresses and to Alcibiades himself for his war against Athens. Word of his fortune reaches Athens, and, as a variety of Athenians importune Timon again, he curses them and dies.

  • Alcibiades (Athenian politician and general)

    Alcibiades, brilliant but unscrupulous Athenian politician and military commander who provoked the sharp political antagonisms at Athens that were the main causes of Athens’ defeat by Sparta in the Peloponnesian War (431–404 bc). Well-born and wealthy, Alcibiades was only a small boy when his

  • Alcibiades (work by Plato)

    Plato: Varia: The Alcibiades depicts Socrates with the brilliant title character, whose meteoric career (before the date of composition but after the fictional date of the dialogue) contributed to the resentment against the older man. In the Clitophon, the title character objects that Socrates has awakened his wish…

  • alcid (bird family)

    Alcidae, bird family, order Charadriiformes, which includes the birds known as auk, auklet, dovekie, guillemot, murre, murrelet, and puffin

  • Alcidae (bird family)

    Alcidae, bird family, order Charadriiformes, which includes the birds known as auk, auklet, dovekie, guillemot, murre, murrelet, and puffin

  • Alcidamas (Greek writer)

    Alcidamas, prominent Sophist and rhetorician who taught in Athens. He was a pupil of Gorgias and a rival of Isocrates. His only extant work, Peri sōphiston (“Concerning Sophists”), stresses the superiority of extempore (though prepared) speeches over written ones. The oration attributed to him

  • Alcindor, Ferdinand Lewis, Jr. (American basketball player)

    Kareem Abdul-Jabbar, American collegiate and professional basketball player who, as a 7-foot 2-inch- (2.18-metre-) tall centre, dominated the game throughout the 1970s and early ’80s. Alcindor played for Power Memorial Academy on the varsity for four years, and his total of 2,067 points set a New

  • Alcindor, Lew (American basketball player)

    Kareem Abdul-Jabbar, American collegiate and professional basketball player who, as a 7-foot 2-inch- (2.18-metre-) tall centre, dominated the game throughout the 1970s and early ’80s. Alcindor played for Power Memorial Academy on the varsity for four years, and his total of 2,067 points set a New

  • Alcinous (Greek mythology)

    Alcinous, in Greek mythology, king of the Phaeacians (on the legendary island of Scheria), son of Nausithoüs, and grandson of the god Poseidon. In the Odyssey (Books VI–XIII) he entertained Odysseus, who had been cast by a storm onto the shore of the island. Scheria was identified in very early

  • Alcipe (Portuguese poet)

    Leonor de Almeida de Portugal, Portuguese poet whose work forms a bridge between the literary periods of Arcádia and Romanticism in Portugal; her style leans toward the Romantic, but she favoured such classical forms as the ode and epithet and made many allusions to mythology and the classics. Her

  • Alciphron (Greek rhetorician)

    Alciphron, rhetorician who wrote a collection of fictitious letters, a form of literature popular in his day. About 120 letters have survived. The background of them all is Athens in the 4th century bc, and the imaginary writers are farmers, fishermen, parasites (stock comic figures known for

  • Alciphron; or, The Minute Philosopher (work by Berkeley)

    George Berkeley: His American venture and ensuing years: Alciphron; or, The Minute Philosopher (1732) was written at Newport, and the setting of the dialogues reflects local scenes and scenery. It is a massive defense of theism and Christianity with attacks on deists and freethinkers and discussions of visual language and analogical knowledge and…

  • Alcippe (Greek mythology)

    Aglauros: Aglauros had a daughter named Alcippe by the god of war, Ares. Alcippe was raped by Halirrhothius, a son of the god of the sea, Poseidon. Ares avenged the act and was tried before the gods on the Athens hill that later was named after him, the Areopagus. That place…

  • Alcippe (Portuguese poet)

    Leonor de Almeida de Portugal, Portuguese poet whose work forms a bridge between the literary periods of Arcádia and Romanticism in Portugal; her style leans toward the Romantic, but she favoured such classical forms as the ode and epithet and made many allusions to mythology and the classics. Her

  • Alcira (Spain)

    Alzira, city, Valencia provincia (province), in the comunidad autónoma (autonomous community) of Valencia, eastern Spain. It lies in the Ribera district, south of the city of Valencia. It originated as the Iberian settlement of Algezira Sucro (“Island of Sucro”), so named because of its insular

  • Alcitho? (Greek mythology)

    Alcitho?, in Greek legend, the daughter of Minyas of Orchomenus, in Boeotia. She and her sisters once refused to participate in Dionysiac festivities, remaining at home spinning and weaving. Late in the day Dionysiac music clanged about them, the house was filled with fire and smoke, and the

  • ALCL (pathology)

    silicone breast implant: Safety issues and regulation: …implants and the development of anaplastic large cell lymphoma (ALCL), a type of T-cell lymphoma. Five years later the World Health Organization officially designated this condition as breast implant-associated ALCL (BIA-ALCL). Reports suggest that the risk of BIA-ALCL is higher with implants that have a textured rather than smooth surface.

  • alclad (metallurgy)

    Alclad, laminated metal produced in sheets composed of a Duralumin (q.v.) core and outer layers of

  • ALCM

    cruise missile: The air-launched cruise missile (ALCM) had a length of 6.3 m (20.7 feet); it attained a range of 2,500 km (1,500 miles). It was designed for deployment on the B-52 bomber. The Tomahawk sea-launched cruise missile (SLCM) and the Tomahawk ground-launched cruise missile (GLCM) had a…

  • Alcmaeon (Athenian exile)

    Megacles: The elder Megacles’ son Alcmaeon may have taken refuge at this time in Sicyon under Cleisthenes’ protection. That tyrant’s daughter Agariste was married to Alcmaeon’s son Megacles, who thus won out over other suitors from all parts of Greece. Though the Alcmaeonids were subsequently allowed to return to Athens,…

  • Alcmaeon (Greek mythology)

    Alcmaeon, in Greek legend, the son of the seer Amphiaraus and his wife Eriphyle. When Amphiaraus set out with the expedition of the Seven Against Thebes, which he knew would be fatal to him, he commanded his sons to avenge his death by slaying Eriphyle (who had been bribed by Polyneices with the

  • Alcmaeon (Greek philosopher and physiologist)

    Alcmaeon, Greek philosopher and physiologist of the academy at Croton (now Crotone, southern Italy), the first person recorded to have practiced dissection of human bodies for research purposes. He may also have been the first to attempt vivisection. Alcmaeon inferred that the brain was the c

  • Alcmaeon (Greek poet)

    Alcman, Greek poet who wrote choral lyrics in a type of Doric related to the Laconian vernacular, used in the region that included Sparta. Alcman’s work was divided by the editors of Hellenistic Alexandria (3rd and 2nd centuries bc) into six books, or papyrus rolls, but the poems survived into

  • Alcmaeonid family (ancient Greek dynasty)

    Alcmaeonid Family, a powerful Athenian family, claiming descent from the legendary Alcmaeon, that was important in 5th- and 6th-century-bc politics. During the archonship of one of its members, Megacles (632? bc), a certain Cylon failed in an attempt to make himself tyrant, and his followers were

  • Alcman (Greek poet)

    Alcman, Greek poet who wrote choral lyrics in a type of Doric related to the Laconian vernacular, used in the region that included Sparta. Alcman’s work was divided by the editors of Hellenistic Alexandria (3rd and 2nd centuries bc) into six books, or papyrus rolls, but the poems survived into

  • Alcmene (Greek mythology)

    Alcmene, in Greek mythology, a mortal princess, the granddaughter of Perseus and Andromeda. She was the mother of Heracles by Zeus, who disguised himself as her husband Amphitryon and seduced

  • Alcmeon (Greek mythology)

    Alcmaeon, in Greek legend, the son of the seer Amphiaraus and his wife Eriphyle. When Amphiaraus set out with the expedition of the Seven Against Thebes, which he knew would be fatal to him, he commanded his sons to avenge his death by slaying Eriphyle (who had been bribed by Polyneices with the

  • Alcmeon (Greek philosopher and physiologist)

    Alcmaeon, Greek philosopher and physiologist of the academy at Croton (now Crotone, southern Italy), the first person recorded to have practiced dissection of human bodies for research purposes. He may also have been the first to attempt vivisection. Alcmaeon inferred that the brain was the c

  • Alcoa (American company)

    Aluminum Company of America, (Alcoa), American corporation founded in 1888 (as the Pittsburgh Reduction Company) and now a leading producer of aluminum. Its operations range from mining bauxite and other ores to smelting and processing aluminum, fabricating aluminum products, and marketing and

  • Alcoa (Tennessee, United States)

    Alcoa, city, Blount county, eastern Tennessee, U.S., about 15 miles (25 km) south of Knoxville and adjacent to Maryville. The city is a gateway to Great Smoky Mountains National Park, which lies to the southeast. It was founded in 1913 by the Aluminum Company of America (Alcoa) on a tract of land

  • Alcoa case (United States [1945])

    Learned Hand: …of America (usually called the Alcoa case). After a trial lasting four years, Hand wrote for the court an opinion rejecting the “rule of reason” that the Supreme Court had applied in antitrust cases since 1911. He ruled that evidence of greed or lust for power was inessential; monopoly itself…

  • Alcoa combination process (chemical process)

    aluminum processing: Refining the ore: During World War II the Alcoa combination process was developed for processing lower-grade ores containing relatively high percentages of silica. Very briefly, this process reclaims the alumina that has combined with silica during the digestion process and has been filtered out with the red mud. The red mud is not…

  • Alcoba?a (Portugal)

    Alcoba?a, town, west-central Portugal. It lies at the confluence of the Alcoa and Ba?a rivers, just south-southwest of the city of Leiria. Alcoba?a is notable for its Cistercian monastery (Mosteiro de Santa Maria), founded in 1152 by King Afonso I in thanksgiving for the reconquest of Santarém from

  • Alcock Convention (Chinese history)

    Alcock Convention, agreement regarding trade and diplomatic contact negotiated in 1869 between Great Britain and China. The implementation of the Alcock Convention would have put relations between the two countries on a more equitable basis than they had been in the past. Its rejection by the

  • Alcock, George Eric Deacon (British astronomer)

    George Eric Deacon Alcock, British schoolteacher and amateur astronomer (born Aug. 28, 1912, Peterborough, Cambridgeshire, Eng.—died Dec. 15, 2000, England), was ranked as one of the world’s finest amateur astronomers; his 10 major discoveries exceeded the previous record of 8 discoveries made by 1

  • Alcock, John (English bishop and statesman)

    John Alcock, architect, bishop, and statesman who founded Jesus College, Cambridge, and who was regarded as one of the most eminent pre-Reformation English divines. Educated at Cambridge, Alcock was made dean of Westminster (1461), and thereafter his promotion was rapid in religious and secular

  • Alcock, Sir John William (British aviator)

    Sir John William Alcock, aviator who, with fellow British aviator Arthur Brown, made the first nonstop transatlantic flight. Alcock received his pilot’s certificate in 1912 and joined the Royal Naval Air Service as an instructor at the opening of World War I. In 1916 he was posted to a wing group

  • Alcock, W. J. (architect)

    Latin American architecture: Contemporary architecture, c. 1965–the present: In Caracas W.J. Alcock adapted R. Buckminster Fuller’s geodesic dome as the roof for his Poliedro Stadium (1972), creating the biggest span of any aluminum structure. Alcock’s residential work, such as his Lopez House (1974) and Ribere?a House (1979), both in Caracas, shows a rigorous concrete frame…

  • Alcoforado, Mariana (Portuguese nun)

    Mariana Alcoforado, Portuguese nun, long believed to have written Lettres portugaise (1669; “Portuguese Letters”), a collection of five love letters, though most modern authorities reject her authorship. Alcoforado entered the convent of N?tre Dame de la Conception in 1656 and became vice-abbess in

  • alcohol (chemical compound)

    Alcohol, any of a class of organic compounds characterized by one or more hydroxyl (―OH) groups attached to a carbon atom of an alkyl group (hydrocarbon chain). Alcohols may be considered as organic derivatives of water (H2O) in which one of the hydrogen atoms has been replaced by an alkyl group,

  • alcohol abuse

    Alcoholism, excessive and repetitive drinking of alcoholic beverages to the extent that the drinker repeatedly is harmed or harms others. The harm may be physical or mental; it may also be social, legal, or economic. Because such use is usually considered to be compulsive and under markedly

  • alcohol consumption

    Alcohol consumption, the drinking of beverages containing ethyl alcohol. Alcoholic beverages are consumed largely for their physiological and psychological effects, but they are often consumed within specific social contexts and may even be a part of religious practices. Because of the effects that

  • alcohol dehydrogenase (enzyme)

    alcohol consumption: Absorption through the stomach and intestines: …lower levels of the enzyme alcohol dehydrogenase (ADH), which breaks down alcohol prior to absorption.

  • alcohol, ethyl (chemical compound)

    Ethanol, a member of a class of organic compounds that are given the general name alcohols; its molecular formula is C2H5OH. Ethanol is an important industrial chemical; it is used as a solvent, in the synthesis of other organic chemicals, and as an additive to automotive gasoline (forming a

  • Alcohol, Tobacco, Firearms, and Explosives, Bureau of (United States government)

    Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF), agency within the United States Department of Justice that is responsible for enforcing federal laws relating to alcohol, tobacco, firearms, and explosives. The ATF headquarters are in Washington, D.C. The bureau’s agents are dispersed

  • alcohol-based hand sanitizer (cleansing agent)

    hand sanitizer: Types of hand sanitizers: Alcohol-based products typically contain between 60 and 95 percent alcohol, usually in the form of ethanol, isopropanol, or n-propanol.1,6 At those concentrations, alcohol immediately denatures proteins, effectively neutralizing certain types of microorganisms.2,4,6

  • alcohol-free hand sanitizer (cleansing agent)

    hand sanitizer: Types of hand sanitizers: 2,4,6 Alcohol-free products are generally based on disinfectants, such as benzalkonium chloride (BAC), or on antimicrobial agents, such as triclosan.1,6,7 The activity of disinfectants and antimicrobial agents is both immediate and persistent.1,3,8 Many hand sanitizers also contain emollients (e.g., glycerin) that soothe the

  • alcoholate (chemical compound)

    Thomas Graham: …salts and alcohol, the “alcoholates,” analogues of the hydrates. In his final paper he described palladium hydride, the first known instance of a solid compound formed from a metal and a gas.

  • alcoholic beverage

    Alcoholic beverage, any fermented liquor, such as wine, beer, or distilled spirit, that contains ethyl alcohol, or ethanol (CH3CH2OH), as an intoxicating agent. A brief treatment of alcoholic beverages follows. For full treatment, see alcohol consumption. Alcoholic beverages are fermented from the

  • alcoholic hepatitis

    alcoholism: Chronic diseases: …including fatty liver disease and alcoholic hepatitis, as well as the risk of certain types of cancer, including head and neck cancer (e.g., oral cancer, pharyngeal cancer), esophageal cancer, liver cancer, breast cancer, and colorectal cancer.

  • Alcoholics Anonymous (organization)

    Alcoholics Anonymous (AA), voluntary fellowship of alcoholic persons who seek to get sober and remain sober through self-help and the help of other recovered alcoholics. Although general conventions meet periodically and Alcoholics Anonymous World Services, Inc., is headquartered in New York City,

  • alcoholism

    Alcoholism, excessive and repetitive drinking of alcoholic beverages to the extent that the drinker repeatedly is harmed or harms others. The harm may be physical or mental; it may also be social, legal, or economic. Because such use is usually considered to be compulsive and under markedly

  • Alconedo, José Luis Rodríguez de (artist)

    Latin American art: Latin American themes: …by Rococo artists) self-portrait by José Luis Rodríguez de Alconedo from 1810. He depicted himself as a mestizo, with tousled hair and an open-necked shirt. His torso, in half-length, is turned in a different direction from his head, which looks spontaneously out at the viewer. This posture, in combination with…

  • Alcools (work by Apollinaire)

    Guillaume Apollinaire: But his poetic masterpiece was Alcools (1913; Eng. trans., 1964). In these poems he relived all his experiences and expressed them sometimes in alexandrines and regular stanzas, sometimes in short unrhymed lines, and always without punctuation.

  • Alcor (star)

    Alcor, (from Arabic: “Faint One”) star with apparent magnitude of 4.01. Alcor makes a visual double with the brighter star Mizar in the middle of the handle of the Big Dipper (Ursa Major). The two are 1.2 light-years apart and may be gravitationally bound to each other. Alcor itself is orbited by a

  • Alcorn Agricultural and Mechanical College (university, Claiborne county, Mississippi, United States)

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    Alcorn State University, public, coeducational institution of higher learning near Lorman, Mississippi, U.S. It is a land-grant university consisting of schools of Arts and Sciences, Business, Education and Psychology, Nursing, and Agriculture and Applied Sciences. The university’s School of

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    electronic game: From chess to Spacewar! to Pong: In 1972 Bushnell, Dabney, and Al Alcorn, another Ampex alumnus, founded the Atari Corporation. Bushnell asked Alcorn to design a simple game based on Ping-Pong, explaining by way of inspiration that Atari had received a contract to make it. While there was in fact no such contract, Alcorn was adept…

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