| | - Olympio, Gilchrist
- (from the article "Togo") ...October 14 legislative elections gave the ruling party of Pres. Faure Gnassingbe a clear majority (50 of the 81 contested seats) in the National Assembly; the main opposition party, led ...
- Olympio, Sylvanus
- nationalist politician and first president of Togo who was the first presidential victim of a wave of military coups that occurred in Africa in the 1960s. [2 Related Articles]
- Olympiodorus The Younger
- a Neoplatonist philosopher who is famous for having maintained the Platonic tradition in Alexandria after the Byzantine emperor Justinian had suppressed the Greek Academy at Athens and other pagan schools ... [1 Related Articles]
- Olympus Mons
- volcano on the planet Mars, the highest point on the planet and the largest known volcano in the solar system. Centred at 19° N, 133° W, Olympus Mons consists of ... [2 Related Articles]
- Olympus, Mount
- (from the article "Cyprus") ...stretches eastward about 50 miles (80 km) from near the island's west coast to the 2,260-foot (689-metre) Stavrovouni peak, about 12 miles (19 km) from the southeastern coast. The range's ...
- Olympus, Mount
- mountain peak, the highest (9,570 feet [2,917 m]) in Greece. It is part of the Olympus massif near the Gulf of Thermai of the Aegean Sea and lies astride the ... [3 Related Articles]
- Olynthus
- ancient Greek city situated on the Chalcidice Peninsula of northwestern Greece. It lay about 1.5 miles (2.5 km) inland from the Gulf of Torone of the Adriatic Sea. A Thracian ... [9 Related Articles]
- Olyokma River
- (from the article "Lena River") ...reduces the rate of flow. In the middle course, from the mouth of the Vitim to the Aldan, the Lena becomes a large, deep river. The water supply increases, especially ...
- Om
- in Hinduism and other religions chiefly of India, a sacred syllable that is considered to be the greatest of all the mantras, or sacred formulas. The syllable Om is composed ... [4 Related Articles]
- Omagh
- district (established 1973), formerly in County Tyrone, western Northern Ireland. It is made up of rolling lowlands and hills and is bordered by the districts of Strabane to the north, ...
- Omagh
- town and seat of Omagh district, western Northern Ireland. Situated on the River Strule, Omagh is a market, shopping, and light-manufacturing centre for the district. Traditional crafts (such as table ... [1 Related Articles]
- Omagua
- (from the article "Eldorado") As the search continued into the Orinoco and Amazon valleys, Eldorado came to mean an entire fabulous country of gold, with legendary cities named Manoa and Omagua. In this quest, ...
- Omaha
- North American Indian people of the Dhegiha branch of the Siouan language stock. It is thought that Dhegiha speakers, which include the Osage, Ponca, Kansa, and Quapaw as well as ... [2 Related Articles]
- Omaha
- (from the article "The Belmont Stakes") ...trained more than 250 winners of stakes events, including two winners of the U.S. Triple Crown (the Kentucky Derby, the Preakness, and the Belmont Stakes): Gallant Fox (1930) and Gallant ...
- Omaha
- (from the article "poker") The play and betting in Omaha are similar to Texas hold'em. However, instead of two hole cards, Omaha players are dealt four hole cards to start the betting. Then there ...
- Omaha
- city, Nebraska, U.S., the port of entry and seat of Douglas county. Omaha is situated in the eastern part of the state and on the west bank of the Missouri ... [2 Related Articles]
- Omaha Beach
- second beach from the west among the five landing areas of the Normandy Invasion of World War II. It was assaulted on June 6, 1944 (D-Day of the invasion), by ... [2 Related Articles]
- Omalius d'Halloy, Jean-Baptiste-Julien d'
- Belgian geologist who was an early proponent of evolution. [2 Related Articles]
- Oman
- country occupying the southeastern coast of the Arabian Peninsula at the confluence of the Persian Gulf and Arabian Sea. [24 Related Articles]
- Oman Mountains
- (from the article "Arabian Desert") ...of Hadhramaut from the Wadi Hadramawt system inland, and a third system, also in the south, divides the Al-Jawl region from the system draining into the Rub' al-Khali. The Oman ...
- Oman, flag of
- national flag consisting of horizontal stripes of white, red, and green and, at the hoist, a vertical red stripe with the national coat of arms. The flag generally has a ...
- Oman, Gulf of
- northwest arm of the Arabian Sea, between the eastern portion (Oman) of the Arabian Peninsula to the southwest and Iran to the north. The gulf is 200 miles (320 km) ... [2 Related Articles]
- Oman, history of
- (from the article "Oman") This discussion focuses on Oman since the 18th century. For a treatment of earlier periods and of the country in its regional context, see Arabia, history of.Arabia
- Oman, John Wood
- British Presbyterian theologian.
- Oman, Julia Trevelyan
- British stage designer (b. July 11, 1930, London, Eng.-d. Oct. 10, 2003, Much Birch, Herefordshire, Eng.), created meticulously researched and beautifully imagined sets for television, opera, theatre, and ballet and ...
- Omani dynasties
- (from the article "eastern Africa, history of") There ensued, after the Omani victory, a century during which, despite a succession of Omani incursions, the East African coast remained very largely free from the dominance of any outside ...
- Omani highlands
- (from the article "Arabia") ...they reach heights of about 10,000 to 12,000 feet above sea level, and eastward they decrease gradually in elevation. The highlands along the southern coast are basically sedimentary in origin. ...
- Omantel
- (from the article "Oman") Government-owned Omantel (formerly known as General Telecommunications Organization) is Oman's primary telecommunications provider. During the 1990s it instituted plans that increased the number of phone lines, expanded the fibre-optic network, ...
- Omar Bongo Technical High School
- (from the article "Gabon") In January 2004 the Gabonese government closed the Omar Bongo Technical High School, the country's largest secondary educational establishment, after four days of rioting. An official inquiry found that more ...
- Omar Khayyam
- Persian mathematician, astronomer, and poet, renowned in his own country and time for his scientific achievements but chiefly known to English-speaking readers through the translation of a collection of his ... [8 Related Articles]
- Omar, Abu
- (from the article "Italy") ...and 7 Italians, mostly current or former intelligence agents, should stand trial in connection with the 2003 kidnapping of the Milan-based Muslim cleric Osama Moustafa Hassan Nasr (known as Abu ...
- Omar, Dullah
- South African human rights lawyer and politician (b. May 26, 1934, Observatory, S.Af.-d. March 13, 2004, Cape Town, S.Af.), was an antiapartheid activist who became minister of justice (1994-99) in ...
- Omar, Jarallah
- (from the article "Yemen") ...during 2004 progress was made in achieving greater internal security. The Yemeni military and law-enforcement authorities successfully shut down a number of small terrorist groups. Socialist leader Jarallah Omar's assassin ...
- Omarr, Sydney
- American astrologer (b. Aug. 5, 1926, Philadelphia, Pa.-d. Jan. 2, 2003, Santa Monica, Calif.), took up his profession at the age of 15 and became probably the most widely read ...
- omasum
- (from the article "artiodactyl") In the most advanced ruminants, the much enlarged stomach consists of four parts. These include the large rumen (or paunch), the reticulum, the omasum (psalterium or manyplies)-which are all believed ...
- Ombos
- (from the article "Kawm Umbu") A short distance south-southwest of modern Kawm Umbu (Arabic: "Hill of Umbu") lies ancient Ombos. It is known for its unique double temple of the Ptolemaic and Roman periods, which ...
- ombre
- Anglicized version of the classic Spanish card game originally called hombre (meaning "man") and now known as tresillo in Spain and South America. [1 Related Articles]
- ombres chinoises
- (French: "Chinese shadows"), European version of the Chinese shadow-puppet show, introduced in Europe in the mid-18th century by returning travelers. Soon adopted by French and English showmen, the form gained ... [1 Related Articles]
- ombu
- (from the article "tree") The ombu (Phytolacca dioica) is a remarkable South American relative of the pokeweed (P. americana). A tree capable of attaining heights of 20 metres (65 feet) and a spread of ...
- ombudsman
- legislative commissioner for investigating citizens' complaints of bureaucratic abuse. The office originated in Sweden in 1809-10 and has been copied in various forms in Scandinavia, New Zealand, the United Kingdom, ... [7 Related Articles]
- Omdurman
- one of the Three Towns (with Khartoum and Khartoum North), east-central Sudan. Situated on the bank of the main Nile River just below the confluence of the Blue and White ... [5 Related Articles]
- Omdurman, Battle of
- (Sept. 2, 1898), decisive military engagement in which Anglo-Egyptian forces, under Major General Sir Herbert Kitchener (later Lord Kitchener), defeated the forces of the Mahdist leader 'Abd Allah and thereby ... [3 Related Articles]
- Ome
- city, Tokyo to (metropolis), east-central Honshu, Japan, on the Tama River. An early trade centre and post town, it was known as a weaving centre for cotton ...
- Omecihuatl
- (from the article "Ometecuhtli") Aztec deity, "Lord of the Duality" or Lord of Life, who represented one aspect of the cosmic duality of the Aztec tradition. With his female counterpart, Omecihuatl ("Two-Lady" or "Lady ...
- Omega Centauri
- (catalog number NGC 5139), the brightest globular star cluster. It is located in the southern constellation Centaurus. It has a magnitude of 3.7 and is visible to the unaided eye ... [1 Related Articles]
- omega effect
- (from the article "geomagnetic field") ...to the rotation axis). Since the conductivity is not perfect, the toroidal loop may diffuse through the fluid, disconnecting itself from the original poloidal field (B). This process is called ...
- Omega Workshops
- (from the article "Fry, Roger") In 1913, following a precedent that had been set by William Morris and the Arts and Crafts Movement, Fry organized a group of young artists into a collective called the ...
- omega-3 fatty acid
- (from the article "nutritional disease") The two types of polyunsaturated fatty acids found in foods are omega-3 fatty acids and omega-6 fatty acids. Linoleic acid, the primary omega-6 fatty acid in most diets, is widespread ...
- omega-6 fatty acid
- (from the article "nutrition, human") ...each chain having an even number of carbon atoms. Of particular importance for humans are the 18-carbon polyunsaturated fatty acids alpha-linolenic acid (an omega-3 fatty acid) and linoleic acid (an ...
- omega-consistency
- (from the article "metalogic") ...of a formal system based on axioms. In 1931 Godel made fundamental discoveries in these areas for the most interesting formal systems. In particular, he discovered that, if such a ...
- omega-minus particle
- (from the article "subatomic particle") ...could be seen to fit into a decuplet, or group of 10, although at the time the classification was introduced, the 10th member of the group, the particle known as ...
- omegatron
- (from the article "mass spectrometry") ...and magnetic fields so that ions can be held in stable orbits for a period of time long enough to perform useful measurements on them. Two forms of mass spectrometers ...
- Omegna, Roberto
- motion picture cameraman, director, and producer of documentaries, one of the pioneers of the Italian cinema. His thorough research and filmmaking skills place him in the forefront of early documentarians.
- omen
- observed phenomenon that is interpreted as signifying good or bad fortune. In ancient times omens were numerous and varied and included, for instance, lightning, cloud movements, the flight of birds, ... [3 Related Articles]
- omentum
- (from the article "peritoneum") ...membrane in the abdominal cavity that connects and supports internal organs. It is composed of many folds that pass between or around the various organs. Two folds are of primary ...
- Omer-pasa Latas
- (from the article "Bosnia and Herzegovina") However, two Bosnian governors succeeded in forcing through some of the sultan's reforms and curbing local resistance. The first of these, Omer-pasa Latas, crushed a major rebellion in 1850-51 and ...
- omerta
- (from the article "Mafia") ...so despotic that they alienated the island's inhabitants and made tolerable the Mafia's peculiar system of private justice, which was regulated by a complicated moral code. This code was based ...
- Ometecuhtli
- Aztec deity, "Lord of the Duality" or Lord of Life, who represented one aspect of the cosmic duality of the Aztec tradition. With his female counterpart, Omecihuatl ("Two-Lady" or "Lady ... [1 Related Articles]
- Ometepe Island
- island in southwestern Nicaragua, the largest island in Lake Nicaragua. Ometepe actually consists of two islands joined by a narrow isthmus 2 miles (3 km) in length. Their combined area ... [2 Related Articles]
- omi
- (from the article "Japan") ...thus headed by a hereditary ruler, while its members were drawn from the group of powerful clan leaders awarded kabane (titles). The two major titles appear to have been muraji ...
- Omidyar, Pierre
- (from the article "eBay") global online auction and trading company launched by American entrepreneur Pierre Omidyar in 1995. eBay was one of the first companies to create and market an Internet Web site to ...
- omina
- (from the article "astrology") ...in the sublunar world. The theoretical basis for this assumption lies historically in Hellenistic philosophy and radically distinguishes astrology from the celestial omina ("omens") that were first ...
- omission solid solution
- (from the article "mineral") The least common type of solid solution is omission solid solution, in which a crystal contains one or more atomic sites that are not completely filled. The best-known example is ...
- Omiya
- (from the article "Saitama") Omiya, formerly the prefectural capital and now the northern portion of Saitama city, and Urawa, the southern part of the new city, were roughly equal in size at the time ...
- Omkar temple
- (from the article "Godarpura") ...central India. It lies along the Narmada River southeast of Indore. Godarpura has noted Saivite, Vaisnavite, and Jaina temples, mostly of the 14th and 18th centuries. The Omkar temple, on ...
- ommatidium
- (from the article "insect") ...rays from a small area of the field of view fall on a single facet and are concentrated upon the rhabdom of the retinula cells below. Since each point of ...
- ommatophore
- (from the article "gastropod") ...bilaterally symmetrical, bearing one or two pairs of tentacles, often with accessory palps, and the mouth in the middle of the ventral margin. In stylommatophoran land snails the upper tentacles, ...
- Ommelanden
- (from the article "Groningen") The early history of the province is chiefly one of almost continuous conflict between the town of Groningen and the surrounding districts known as the Ommelanden. Although Groningen acquired a ...
- ommochrome
- any of a group of biological pigments (biochromes) conspicuous in the eyes of insects and crustaceans as well as in the changeable chromatophores (pigment-containing cells) in the skin of cephalopods. ... [1 Related Articles]
- ommyo-ji
- (from the article "Daoism") ...in the temples, and among the people. Records from the early 7th century contain traces of Daoism, which was appreciated chiefly for its magical claims. The "masters of yin and ...
- Omni-Directional Inspection System
- (from the article "Military Affairs") ...casualties in Iraq resulted from the insurgents' using remotely detonated improvised explosives, so the U.S. Army rushed into service robotic devices called unmanned ground vehicles. One type, the Omni-Directional Inspection ...
- omnibus hearts
- (from the article "hearts") A popular four-hand variant is omnibus hearts, in which capturing the jack of diamonds (sometimes the 10 of diamonds) counts for minus 10 points. Although four players make for an ...
- omnidirectional antenna
- (from the article "telecommunications media") ...used to convert a time-varying electric current into an electromagnetic wave or field, which freely propagates through a nonconducting medium such as air or space. In a broadcast radio channel, ...
- omnipotence
- (from the article "creation myth") ...deity may differ from culture to culture, a specific and pervasive structure of this type of deity can be discerned. The following characteristics tend to be common: (1) he is ...
- omnivore
- animal with wide food preferences, which can eat both plant and animal matter. Many small birds and mammals are omnivorous; deer mice and mockingbirds have diets that at different times ... [3 Related Articles]
- Omo
- site of paleoanthropological excavations along the southern part of the Omo River in southwestern Ethiopia. Hominin (of human lineage) fossils unearthed there between 1967 and 1974 consist of about 200 ...
- Omo I
- (from the article "Anthropology and Archaeology") The Omo I and Omo II specimens, H. sapiens fossils from the Kibish Formation in southern Ethiopia, were originally thought to be approximately 130,000 years old, but they were redated ...
- Omo II
- (from the article "Anthropology and Archaeology") The Omo I and Omo II specimens, H. sapiens fossils from the Kibish Formation in southern Ethiopia, were originally thought to be approximately 130,000 years old, but they were redated ...
- Omo remains
- (from the article "Omo") site of paleoanthropological excavations along the southern part of the Omo River in southwestern Ethiopia. Hominin (of human lineage) fossils unearthed there between 1967 and 1974 consist of about 200 ...
- Omo River
- (from the article "Ethiopia") ...and the Baro rivers. All three rivers flow west to the White Nile in The Sudan. The second system is the Rift Valley internal drainage system, composed of the Awash ...
- Omok language
- (from the article "Paleo-Siberian languages") ...the estuary of the Indigirka River; and Kolyma, or Forest, Yukaghir (also called Southern Yukaghir) along the bend of the Kolyma River. Extinct earlier dialects or languages related to Yukaghir ...
- Omomyidae
- (from the article "primate") ...evolved; one genus, Europolemur, is even known to have a had a toilet claw, the large claw that in modern species replaces a nail on the second toe of the ...
- omophorion
- (from the article "pallium") The equivalent vestment in the Eastern churches is the omophorion, a long, white silk or velvet embroidered scarf, worn by bishops celebrating the holy liturgy.
use by bishops
- Omortag
- (from the article "Byzantine Empire") ...victim to assassination, but before his death events beyond his control had improved the empire's situation. Krum died suddenly in 814 as he was preparing an attack upon Constantinople, and ...
- Omotic languages
- family of about 40 languages spoken in western Ethiopia. Although most scholars assign them to the Afro-Asiatic language phylum, this classification is subject to ongoing debate: because their speakers were ... [1 Related Articles]
- Omoto
- religious movement of Japan that had a large following in the period between World War I and World War II and that served as a model for numerous other sects ...
- Omotoso, Kole
- Nigerian novelist, playwright, and critic who wrote from a Yoruba perspective and coupled the folklore he learned as a child with his adult studies in Arabic and English. His major ...
- omphacite
- (from the article "Common metamorphic minerals as a function of pressure, temperature, and protolith composition") Omphacite is restricted in occurrence to the high-pressure and high-temperature rocks called eclogites. Eclogites represent the most deep-seated conditions of metamorphism and are characterized by an assemblage of omphacite and ...
- Omphalea
- genus of tropical shrubs or trees of the spurge family (Euphorbiaceae), comprising 15 species; 12 are native to the Americas, 3 to the Old World. O. triandra, the Jamaican cobnut, ...
- Omphalea diandra
- (from the article "Omphalea") ...metres (11.5 feet) and bears yellow nuts 3.75 centimetres (1.5 inches) thick, which are edible if the poisonous embryo is removed. Juice from the fruit blackens and is used in ...
- Omphalea megacarpa
- (from the article "Omphalea") ...is removed. Juice from the fruit blackens and is used in making ink and glue. O. diandra, native to Colombia, bears edible oily seeds that are also used as hog ...
- omphalos
- (from the article "sacrifice") ...of the universe. For the ancient Greeks the grave marker (a mound of earth or a stone) was the earth altar upon which sacrifices to the dead were made and, ...
- Omri
- (reigned 876-869 or c. 884-c. 872 BC), king of Israel, the father of Ahab. [7 Related Articles]
- Omsk
- oblast (province), west central Russia, covering an area of 53,900 sq mi (139,700 sq km) in the basin of the middle Irtysh River. Its entire surface is an extremely flat ...
- Omsk
- city and administrative centre of Omsk oblast (province), west-central Russia, on the Irtysh River at its junction with the Om. Omsk, founded in 1716 as a stronghold at the eastern ... [2 Related Articles]
- Omura
- city, Nagasaki ken (prefecture), Kyushu, Japan, facing Omura-wan (Omura Bay), on the western slopes of Tara-dake (Mt. Tara). In the 12th century it was the residence of the Omura daimyo ...
- Omura Masujiro
- Japanese scholar and soldier popularly regarded in Japan as the founder of the modern Japanese Army.
- Omura Sumitada
- (from the article "Japan") ...and the acquisition of military equipment and supplies, protected Christianity. Some daimyo became Christian converts. Three Kyushu Christian lords-Otomo Sorin, Arima Harunobu, and Omura Sumitada-even sent an embassy to Rome. ...
- Omuta
- city, Fukuoka ken (prefecture), northern Kyushu, Japan, on the east coast of the Ariake-kai (Ariake Sea). Formerly a coal-mining centre, Omuta's activity declined after the 1960s with the conversion from ...
- OMX
- (from the article "Denmark") ...under government supervision. Profits revert to the state treasury. The national stock exchange, established in 1861, is located in Copenhagen. In the early 21st century the exchange became part of ...
- on side
- (from the article "cricket") ...are 11 players on a team and 2 of them must be the bowler and wicketkeeper, only 9 other positions can be occupied at any one time. The field is ...
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