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Ireland, John ... Irvine
Ireland, John
first archbishop of St. Paul; head of the liberal Roman Catholic clergy who promoted the integration of predominantly immigrant parishes into the life of the U.S. church (and society as ...
Ireland, William Henry
English forger of Shakespearean works.
Irenaeus, Saint
bishop of Lugdunum (Lyon) and leading Christian theologian of the 2nd century. His work Adversus haereses (Against Heresies), written in about 180, was a refutation of Gnosticism. In the course ...
Irene
Byzantine ruler and saint of the Greek Orthodox Church who was instrumental in restoring the use of icons in the Eastern Roman Empire.
Irene Ducas
wife of the Byzantine emperor Alexius I Comnenus, known from the description of her in the Alexiad of their daughter, Anna Comnena.
Irenidae
songbird family, order Passeriformes, consisting of the leafbirds, ioras, and fairy bluebirds, about 14 species of small brightly coloured birds of the forests and farms of southeastern Asia.
Ireton, Henry
English soldier and statesman, a leader of the Parliamentary cause during the Civil Wars between the Royalists and Parliamentarians.
Irgun Zvai Leumi
Jewish right-wing underground movement in Palestine, founded in 1931. At first supported by many non-Socialist Zionist parties, in opposition to the Haganah, it became in 1936 an instrument of the ...
Iri
city, Cholla-pukto (North Cholla province), western South Korea. It is located 16 miles (26 km) east of the port city of Kunsan. It lies in the northern part of the ...
Iridaceae
the iris family of flowering plants, belonging to the order Liliales. The family is known for ornamental genera such as Iris, Gladiolus, and Crocus (see ).
iridescence
interference of light either at the surface or in the interior of a material that produces a series of colours as the angle of incidence changes. Best known are the ...
iridium
(Ir), chemical element, one of the platinum metals of Group VIII of the periodic table. It is very dense and rare and is used in platinum alloys. A precious, silver-white ...
iridosmine
mineral consisting of an alloy of iridium and a smaller proportion of osmium. It occurs in gold-bearing conglomerates, as at the Witwatersrand in South Africa, and in gold sands, as ...
Iriga
city, southeastern Luzon, Philippines. It is located in the central part of Bicol Peninsula, about 20 miles (30 km) southeast of Naga. Iriga is named for the extinct volcano (3,976 ...
Irigaray, Luce
French feminist psychoanalyst and philosopher who examined the uses and misuses of language in relation to women.
Irigoyen, Hipolito
Argentine statesman who became his country's first president elected by broad popular suffrage. He was driven from office during his second term by a military coup in 1930.
Iris
in Greek mythology, the personification of the rainbow and a messenger of the gods. According to the Greek poet Hesiod, she was the daughter of Thaumas and the ocean nymph ...
iris
in anatomy, pigmented muscular curtain at the front of the eye, between the cornea and the lens and perforated by an opening called the pupil. The iris consists of two ...
Iris
genus of about 300 species of plants in the family Iridaceae including some of the world's most popular and varied garden flowers, centred in the North Temperate Zones. Some of ...
Irish elk
genus (Megaloceros) of extinct giant elk commonly found as fossils in Pleistocene deposits in Europe and Asia (the Pleistocene Epoch began 1,600,000 years ago and ended about 10,000 years ago). ...
Irish harp
traditional harp of medieval Ireland and Scotland, characterized by a huge soundbox carved from a solid block of wood; a heavy, curved neck; and a deeply outcurved forepillar-a form shared ...
Irish language
a member of the Goidelic group of Celtic languages, spoken in Ireland. As one of the national languages of the Republic of Ireland, Irish is taught in the public schools ...
Irish literary renaissance
flowering of Irish literary talent at the end of the 19th and the beginning of the 20th century that was closely allied with a strong political nationalism and a revival ...
Irish literature
either of two literatures, one in the native language (Irish, or Gaelic) of Ireland and the other in the language of the English conquerors; the latter is often called Anglo-Irish ...
Irish moss
(Chondrus crispus), species of red algae, a small, tufted seaweed with thin fronds from 5 to 25 cm (2 to 10 inches) long, that grows abundantly along the rocky parts ...
Irish needle lace
lace made with a needle in Ireland from the late 1840s, when the craft was introduced as a famine-relief measure. Technically and stylistically influenced by 17th-century Venetian needle lace, it ...
Irish Potato Famine
1845-49, famine that occurred in Ireland in 1845-49 when the potato crop failed in successive years. The crop failures were caused by late blight (q.v.), a disease that destroys both ...
Irish Rebellion
(1798), an uprising of Irish Roman Catholics seeking parliamentary reform and complete Catholic emancipation.
Irish Republican Army
republican paramilitary organization seeking the end of British rule in Northern Ireland and the unification of the province with the republic of Ireland.
Irish Sea
arm of the North Atlantic Ocean that separates Ireland from Great Britain. The Irish Sea is bounded by Scotland on the north, England on the east, Wales on the south, ...
Irish Sweepstakes
one of the largest lotteries promoted internationally; it was authorized by the Irish government in 1930 to benefit Irish hospitals. A private trust was formed to run the lottery and ...
Irish system
penal method originated in the early 1850s by Sir Walter Crofton; it emphasized training and performance as the instruments of reform. The Irish system consisted of three phases: a period ...
Irish terrier
dog developed in Ireland, one of the oldest breeds of terriers. Nicknamed the "daredevil," it has earned the reputation of being adaptable, loyal, spirited, and recklessly courageous. It served as ...
Irish wolfhound
tallest of all dog breeds, a keen-sighted hound used in Ireland for many years to hunt wolves and other game. An ancient breed, first mentioned about the 2nd century AD, ...
Irish yew
ornamental evergreen of the yew family. See English yew.
Irkutsk
city and administrative centre of Irkutsk oblast (province), east-central Russia. The city lies along the Angara River at its confluence with the Irkut River. It was founded ...
Irkutsk
oblast (province), east-central Russia, occupying an area of 296,500 square miles (767,900 square km) west and north of Lake Baikal. It consists mostly of the hills and ...
Irminger Current
branch of the warm North Atlantic Current, flowing generally westward along the south coast of Iceland. It divides into two currents west of Iceland. One proceeds northward and then eastward ...
Irnerius
one of the scholars who revived Roman legal studies in Italy and the first of a long series of noted legal glossators and teachers of law (late 11th-middle 13th century) ...
iroko wood
wood of the iroko tree (Chlorophora excelsa), native to the west coast of Africa. It is sometimes called African, or Nigerian, teak, but the iroko is unrelated to the teak ...
iron
chemical element, metal of Group VIII of the periodic table, the most used and cheapest metal.
Iron Act
(1750), in U.S. colonial history, one of the British Trade and Navigation acts; it was intended to stem the development of colonial manufacturing in competition with home industry by restricting ...
Iron Age
final technological and cultural stage in the Stone-Bronze-Iron-Age sequence. The date of the full Iron Age, in which this metal for the most part replaced bronze in implements and weapons, ...
Iron Cross
Prussian military decoration instituted in 1813 by Frederick William III for distinguished service in the Prussian War of Liberation. Use of the decoration was revived by William I for the ...
Iron Crown of Lombardy
originally an armlet or perhaps a votive crown, as suggested by its small size, that was presented to the Cathedral of Monza, where it is preserved as a holy relic. ...
Iron Curtain
the political, military, and ideological barrier erected by the Soviet Union after World War II to seal off itself and its dependent eastern European allies from open contact with the ...
Iron Gate
the last gorge of the Ðerdap gorge system on the Danube River, dividing the Carpathian and Balkan mountains and forming part of the boundary between Serbia and Montenegro and Romania. ...
Iron Guard
Romanian fascist organization that constituted a major social and political force between 1930 and 1941. In 1927 Corneliu Zelea Codreanu founded the Legion of the Archangel Michael, which later became ...
Iron Knob
town, northeastern Eyre Peninsula, South Australia, 247 miles (397 km) northwest of Adelaide by rail. It is the centre for one of the richest deposits of iron ore in the ...
iron mask, the man in the
political prisoner famous in French history and legend who died in the Bastille in 1703 during the reign of Louis XIV. There is no historical evidence that the mask was ...
iron meteorite
any meteorite consisting mainly of iron, usually combined with small amounts of nickel. When such meteorites, called irons, fall through the atmosphere, a thin, black crust of iron oxide may ...
Iron Mountain
city, seat (1891) of Dickinson county, southwestern Upper Peninsula of Michigan, U.S., 52 miles (84 km) west of Escanaba. Settled in 1879 and incorporated in 1889, it was named for ...
iron processing
use of a smelting process to turn the ore into a form from which products can be fashioned. Included in this article also is a discussion of the mining of ...
iron-deficiency anemia
most frequent type of anemia, which may develop when the body's iron loss is high and its iron stores are depleted (e.g., during periods of rapid growth, pregnancy, or menstruation ...
Ironbridge
structure that is generally considered the first cast-iron bridge, spanning the River Severn at Ironbridge, near Coalbrookdale, in Shropshire, England. It is now a British national monument. The bridge's semicircular ...
ironclad
type of warship developed in Europe and the United States in the mid-19th century, characterized by the iron casemates that protected the hull. In the Crimean War (1853-56) the French ...
ironstone china
type of stoneware introduced in England early in the 19th century by Staffordshire potters who sought to develop a porcelain substitute that could be mass-produced. The result of their experiments ...
ironweed
any of about 500 species of perennial plants constituting the genus Vernonia of the family Asteraceae. Small herbaceous species are distributed throughout the world, while shrubs and trees are native ...
Ironwood
city, Gogebic county, western Upper Peninsula of Michigan, U.S. Ironwood lies along the Montreal River at the Wisconsin border, 90 miles (145 km) east of Duluth, Minn. It is the ...
ironwork
architectural features of buildings, artwork, utensils, and weapons made of iron.
irony
language device, either in spoken or written form (verbal irony), in which the real meaning is concealed or contradicted by the literal meanings of the words, or in a theatrical ...
Iroquois
any member of the Iroquois Confederacy or, more broadly, of the North American Indian tribes speaking a language of the Iroquoian family-notably the Cayuga, Cherokee, Huron, Mohawk, Oneida, Onondaga, Seneca, ...
Iroquois Confederacy
confederation of five (later six) Indian tribes across upper New York state that during the 17th and 18th centuries played a strategic role in the struggle between the French and ...
Iroquois Falls
town, Cochrane district, east-central Ontario, Canada. It lies along the Abitibi River, just west of Lake Abitibi, 190 miles (300 km) north-northwest of North Bay. The town was named for ...
irrational number
any real number that cannot be expressed as the quotient of two integers. For example, there is no number among integers and fractions that solves the problem of finding the ...
irrationalism
a 19th- and early 20th-century philosophical trend that claimed to enrich man's apprehension of life by expanding it beyond the rational to its fuller dimensions. Rooted either in metaphysics or ...
Irrawaddy River
principal river of Myanmar (formerly Burma), running through the centre of the country. Myanmar's most important commercial waterway, it is about 1,350 miles (2,170 km) long. Its name is believed ...
Irredentist
any of the Italian patriots prominent in the last quarter of the 19th century and the early 20th century who sought to deliver Italian lands from foreign rule. Their name ...
irregular ode
a rhymed ode that employs neither the three-part form of the Pindaric ode nor the two- or four-line stanza that typifies the Horatian ode. It is also characterized by irregularity ...
irrigation and drainage
artificial application of water to land and artificial removal of excess water from land, respectively. Some land requires irrigation or drainage before it is possible to use it for any ...
irritable bowel syndrome
relatively common disorder of the intestines characterized by abdominal pain, intestinal gas, and altered bowel habits, including diarrhea, constipation, or both. Other symptoms may include abdominal pain that is relieved ...
Irtysh River
river rising from the glaciers on the southwestern slopes of the Altai Mountains in Sinkiang, China. It flows west across the Chinese border through Lake Zaysan, and then northwest across ...
Iruma
city, Saitama ken (prefecture), Honshu, Japan, on the Iruma River. The city is located on the Musashino uplands and the southern part of the Kaji hills. Iruma is renowned for ...
Irun
city, Guipuzcoa provincia, in the Basque Country comunidad autonoma ("autonomous community"), northern Spain. It is situated on the left bank of the Bidasoa River. At Irun the river is bridged ...
Irvine
city, Orange county, southern California, U.S. Adjacent to the city of Santa Ana (northwest), Irvine lies about 40 miles (60 km) southeast of Los Angeles. Originally inhabited by Tongva (or ...
Irvine
royal burgh (town), North Ayrshire council area, historic county of Ayrshire, southwestern Scotland, on the Firth of Clyde. The last of Scotland's five "new towns," Irvine was designated in 1966 ...