| | - epithet
- an adjective or phrase that is used to express the characteristic of a person or thing, such as Ivan the Terrible. In literature, the term is considered an element of ... [2 Related Articles]
- epitoke
- (from the article "reproductive system, animal") ...annelid polychaetes (marine worms) reproductive activity is synchronized with lunar cycles. At breeding time the body of both sexes differentiates into two regions, an anterior atoke and a posterior epitoke, ...
- epitope
- (from the article "antibody") ...B cells to recognize different antigens. The antigen receptor does not actually recognize the entire antigen; instead it binds to only a portion of the antigen's surface, an area called ...
- epitrachelion
- (from the article "stole") In the Eastern churches the equivalent vestment is the epitrachelion worn by priests and the orarion worn by deacons.descriptionreligious dressEastern ...
- Epitrix fuscula
- (from the article "flea beetle") ...The cucumber beetle (Epitrix cucumeris) feeds on cucumbers and melon vines, E. hirtipennis attacks tobacco plants, and E. fuscula eats tomatoes ...
- Epitrix hirtipens
- (from the article "flea beetle") ...striolata) infests cabbage and similar plants. The cucumber beetle (Epitrix cucumeris) feeds on cucumbers and melon vines, E. hirtipennis attacks tobacco plants, and
- epitympanum
- (from the article "ear, human") The cavity of the middle ear is a narrow, air-filled space. A slight constriction divides it into an upper and a lower chamber, the tympanum (tympanic cavity) proper below and ...
- Epizoanthus americanus
- (from the article "zoanthid") ...largest species, Isozoanthus giganteus, grows to about 19 cm (about 7.5 inches) in length and 2 cm in width. Many species live on or in close association with sponges or ...
- epizoochory
- (from the article "seed and fruit") ...animals eat the fruit for its water content and bury their own dung, which contains the seeds, near their burrows. Furry terrestrial mammals are the agents most frequently involved in ...
- epizootic disease
- (from the article "animal disease") ...stable relationship between the causative agent and the animals affected by it. Diseases that occasionally occur at higher than normal rates in animal populations are referred to as epidemic, or ...
- Eplattenier, Charles L'
- (from the article "Corbusier, Le") ...years of age, Le Corbusier left primary school to learn the enamelling and engraving of watch faces, his father's trade, at the Ecole des Arts Decoratifs at La Chaux-de-Fonds. There, ...
- epoch
- unit of geological time during which a rock series is deposited. It is a subdivision of a geological period and the word is capitalized when employed in a formal sense ...
- epoch
- (from the article "time") ...purposes. Although defining time presents difficulties, measuring it does not; it is the most accurately measured physical quantity. A time measurement assigns a unique number to either an epoch, which ...
- epoche
- in Greek philosophy,"suspension of judgment," a principle originally espoused by nondogmatic philosophical Skeptics of the ancient Greek Academy who, viewing the problem of knowledge as insoluble, proposed that, when controversy ... [7 Related Articles]
- epode
- a verse form composed of two lines differing in construction and often in metre, the second shorter than the first. In Greek lyric odes, an epode is the third part ...
- Epona
- (from the article "Rhiannon") in Celtic religion, the Welsh manifestation of the Gaulish horse goddess Epona and the Irish goddess Macha. She is best-known from The Mabinogion, a collection of medieval Welsh tales, in ...
- eponym
- one for whom or which something is or is believed to be named. The word can refer, for example, to the usually mythical ancestor or totem animal or object that ...
- eponym list
- (from the article "chronology") ...office of limmu for one year only and whom historians also call by the Greek name of eponym. Annals of the Assyrian kings were being found at ...
- epoxide
- cyclic ether with a three-membered ring. The basic structure of an epoxide contains an oxygen atom attached to two adjacent carbon atoms of a hydrocarbon. [3 Related Articles]
- epoxy resin
- (from the article "industrial polymers, major") 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:applicationsadhesives
- Eppens, Francisco
- (from the article "mosaic") ...alternative to the less durable murals. Often mosaics were designed by mural painters such as Diego Rivera who, in 1953, designed the immense mosaic on the facade of the Teatro ...
- Epperson, Gordon
- (from the article "music") ...experience, time assumes an ideal guise. (Painting and sculpture, in their distinctive modalities, embody ideal space.) Langer embraces all the arts in her purview. The U.S. musical theorist Gordon Epperson's ...
- Epping Forest
- district, administrative and historic county of Essex, England, at the northeastern edge of London. The name also refers to an ancient tract of woodland that crosses through the district. The ...
- Eppley pyrheliometer
- (from the article "sunlight") The Eppley pyrheliometer measures the length of time that the surface receives sunlight and the sunshine's intensity as well. It consists of two concentric silver rings of equal area, one ...
- EPR thought experiment
- (from the article "Physical Sciences") ...accepted that an external reality exists, independent of observation. This belief, however, ran counter to some of the predictions of quantum mechanics. The famous Einstein-Podolsky-Rosen (EPR) "thought experiment" sought to ...
- Epsilon Aurigae
- binary star system of about third magnitude having one of the longest orbital periods (27 years) among eclipsing binaries (see eclipsing variable star). It is located an estimated 2,000 light-years ...
- Epsilon Eridani
- (from the article "The 20 nearest stars") ...the main sequence. These stars range from hot, O- and B-type, blue objects at least 10,000 times brighter than the Sun down through white A-type stars such as Sirius to ...
- Epsilon Orionis
- (from the article "star") The hot B-type stars, such as Epsilon Orionis, are characterized by lines of helium and of singly ionized oxygen, nitrogen, and neon. In very hot O-type stars, lines of ionized ...
- Epsom and Ewell
- borough (district), administrative and historic county of Surrey, England, at the foot of the North Downs, on the southwestern periphery of Greater London. It became important with the discovery (c. ...
- Epsom Derby
- (from the article "Equestrian Sports") Motivator looked like a good prospect in June when he won the Epsom Derby by five lengths over Walk in the Park. Up to that point Motivator was undefeated in ...
- Epsom Downs
- (from the article "Derby") ...earl of Derby. With a field limited to three-year-old colts and fillies, the race is run the first Wednesday in June over a 1 12-mile (about 2,400-metre) course at Epsom ...
- epsomite
- a common sulfate mineral, hydrated magnesium sulfate (MgSO4·7H2O). Its deposits are formed by evaporation of mineral waters, as at Epsom, Surrey, Eng., where it was discovered in 1695. It also ...
- Epstein, Barbara Zimmerman
- American editor and journalist (b. Aug. 30, 1928, Boston, Mass.-d. June 16, 2006, New York, N.Y.), cofounded (1963) and coedited (with Robert Silvers) the New York Review of Books (NYRB), ...
- Epstein, Brian
- (from the article "Beatles, the") In autumn 1961 Brian Epstein, a local Liverpool record store manager, saw the band and fell in love. Unshakably convinced of their commercial potential, Epstein became their manager and proceeded ...
- Epstein, Israel
- Polish-born Chinese author and journalist (b. April 20, 1915, Warsaw, Pol., Russian Empire-d. May 26, 2005, Beijing, China), through prolific writings and his position as editor of the newsmagazine China ...
- Epstein, Julius J.
- American screenwriter (b. Aug. 22, 1909, New York, N.Y.-d. Dec. 30, 2000, Los Angeles, Calif.), had a long career, most noted for the adaptation-in partnership with his twin brother, Philip, ... [1 Related Articles]
- Epstein, Philip G.
- (from the article "1943: Other Winners") Screenplay: Julius J. Epstein, Philip G. Epstein, Howard Koch for CasablancaOriginal Story: William Saroyan for The Human ComedyOriginal Screenplay: Norman Krasna for Princess O'RourkeCinematography, Black-and-White:...
- Epstein, Sir Jacob
- one of the leading portrait sculptors of the 20th century whose work, though seldom innovative, is widely heralded for its perceptive depiction of character and its modelling technique. [2 Related Articles]
- Epstein-Barr virus
- virus of the Herpesviridae family that is the major cause of acute infectious mononucleosis, a common syndrome characterized by fever, sore throat, extreme fatigue, and swollen lymph glands. [10 Related Articles]
- Eptatretidae
- (from the article "hagfish") ...in the superclass Agnatha. Although most classifications place all hagfishes in the family Myxinidae, they are sometimes divided into two families: Myxinidae, represented in every ocean, and Eptatretidae, represented everywhere ...
- epulones
- (from the article "Roman religion") ...colleges, the quindecimviri ("Board of Fifteen," who earlier had been 10 in number) sacris faciundis looked after foreign rites, and the members of the other body, the epulones, supervised religious ...
- Epulu
- (from the article "Ituri Forest") ...drain the Ituri is the colour of strong tea. Besides the Ituri River itself, there are many broad streams that flow generally from east to west. The most notable are ...
- Epworth
- (from the article "Axholme, Isle of") ...by fens. Drainage works, begun in the 17th century by Cornelius Vermuyden and subsequently extended and improved, have transformed the area into one of high fertility. The chief settlement is ...
- epyllion
- brief narrative poem in dactylic hexameter of ancient Greece, usually dealing with mythological and romantic themes. It is characterized by lively description, miniaturistic attitude, scholarly allusion, and an elevated tone ... [5 Related Articles]
- equable climate
- (from the article "climate") ...year, although the precipitation is often of low intensity. Fog is common in autumn and winter, but thunderstorms are infrequent. Strong gales with high winds may be encountered in winter. ...
- equal charge displacement hypothesis
- (from the article "nuclear fission") ...investigations have suggested that the most probable charge division is one that is displaced from stability about the same distance in both chains. This empirical observation is called the equal ...
- Equal Employment Opportunity Commission
- government agency established on July 2, 1965, by Title VII of the Civil Rights Act of 1964 to "ensure equality of opportunity by vigorously enforcing federal legislation prohibiting discrimination in ... [3 Related Articles]
- Equal Pay Act
- (from the article "comparable worth") ...concept of comparable worth was introduced in the 1970s by reformers seeking to correct inequities in pay for occupations traditionally held by men and women. Following Congressional passage of the ...
- equal protection
- in United States law, the constitutional guarantee that no person or group will be denied the protection under the law that is enjoyed by similar persons or groups. In other ... [3 Related Articles]
- Equal Rights Amendment
- a proposed but unratified amendment to the U.S. Constitution that was designed mainly to invalidate many state and federal laws that discriminate against women; its central underlying principle was that ... [7 Related Articles]
- Equal Rights Party
- (from the article "Woodhull, Victoria") ...When a dissident group called the National Radical Reformers broke away from the NWSA in 1872, Woodhull-by then an accomplished public speaker-was nominated for the presidency by the Equal Rights ...
- equal tax division
- (from the article "Japan") ...were made depots for military supplies on the pretext of protecting them from the depredations of local warriors, and half their yearly taxes were given to the shugo. This was ...
- equal temperament
- in music, a tuning system in which the octave is divided into 12 semitones of equal size. Because it enables keyboard instruments to play in all keys with minimal flaws ... [6 Related Articles]
- equal-field system
- official institution of land distribution and tax collection in traditional China and Japan. The system originated in China in 485 CE by order of the emperor Xiaowendi of the Bei ... [1 Related Articles]
- equality
- (from the article "metalogic") ...logic without including sentences asserting identity. The proof can be extended, however, to the full elementary logic in a fairly direct manner. Thus, if F is a sentence containing equality, ...
- equalization
- (from the article "telephone and telephone system") ...adaptive equalizer to compensate for the smearing of data symbols due to the mutual interference of signals being attenuated at various rates within the telephone system. Although the concept of ...
- equalization bias
- (from the article "sound recording") ...of the wave shape on the tape. In order to overcome this problem, a sinusoidal signal of about 100 kilohertz is added to the wave immediately before the wave is ...
- equant
- (from the article "Ptolemaic system") ...when at perigee. Ptolemy enhanced the effect of eccentricity by making the epicycle's centre sweep out equal angles along the deferent in equal times as seen from a point that ...
- equation
- (from the article "algebra") Perhaps the most basic notion in mathematics is the equation, a formal statement that two sides of a mathematical expression are equal-as in the simple equation x + 3 = 5-and that both sides ...
- equations, theory of
- (from the article "mathematics, East Asian") ...The quadratic equation appears to have been conceived of as an arithmetic operation with two terms (b and c). Moreover, the equation was thought to have only one root. The ...
- Equator
- great circle around the Earth that is everywhere equidistant from the geographic poles and lies in a plane perpendicular to the Earth's axis. This geographic, or terrestrial, Equator divides the ... [5 Related Articles]
- equatorial air mass
- (from the article "air mass") The continental Tropical (cT) air mass originates in arid or desert regions in the middle or lower latitudes, principally during the summer season. It is strongly heated in general, but ...
- equatorial bulge
- (from the article "mechanics") ...of the equinoxes. The Earth is a kind of gyroscope, spinning on its axis once each day. The Sun would apply no torque to the Earth if the Earth were ...
- equatorial coordinate
- (from the article "star") Accurate observations of stellar positions are essential to many problems of astronomy. Positions of the brighter stars can be measured very accurately in the equatorial system (the coordinates of which ...
- equatorial countercurrent
- current phenomenon noted near the equator, an eastward flow of oceanic water in opposition to and flanked by the westward equatorial currents of the Atlantic, Pacific, and Indian oceans. Lying ... [4 Related Articles]
- equatorial current
- ocean current flowing westward near the equator, predominantly controlled by the winds. Characteristically, equatorial-current systems consist of two westward-flowing currents approximately 600 miles (1,000 km) wide (North and South equatorial ... [1 Related Articles]
- equatorial front
- (from the article "climate") In the equatorial belt, the trade winds from both hemispheres converge and give rise to a general upward motion of air, which becomes intensified locally in tropical storms that produce ...
- Equatorial Guinea
- country located on the west coast of Africa. It consists of Rio Muni (also called Mbini), on the continent, and five islands: Bioko (formerly Fernando Po), Corisco, Great Elobey (Elobey ... [26 Related Articles]
- Equatorial Guinea, flag of
- national flag consisting of horizontal stripes of green, white, and red, with a blue triangle at the hoist and the national coat of arms in the centre. The width-to-length ratio ...
- Equatorial Guinea, history of
- (from the article "Equatorial Guinea") The island of Bioko (formerly Fernando Po) was sighted by Fernao do Po, probably in 1472. At first it was called Formosa ("Beautiful"). Annobon was probably sighted by Ruy de ...
- equatorial mounting
- (from the article "telescope") Most refractors currently in use at observatories have equatorial mountings. (The mounting describes the orientation of the physical bearings and structure that permits a telescope to be pointed at a ...
- equatorial rain forest
- (from the article "Benin") The original rain forest, which covered most of the southern part of the country, has now largely been cleared, except near the rivers. In its place, many oil palms and ...
- equatorial substituent
- (from the article "hydrocarbon") ...the ring; thus, the axial hydrogens at carbons one, three, and five lie on one side of the ring and those at carbons two, four, and six on the other. ...
- equatorial system
- (from the article "star") Accurate observations of stellar positions are essential to many problems of astronomy. Positions of the brighter stars can be measured very accurately in the equatorial system (the coordinates of which ...
- equatorial trough
- (from the article "atmosphere") ...diverges toward the poles in the upper troposphere. (This divergence aloft results in a wide strip of low atmospheric pressure at the surface in the tropics, occurring in an area ...
- Equatorial Undercurrent
- (from the article "ocean") At the geographic equator a jetlike current is found just below the sea surface, flowing toward the east counter to the surface current. This is called the Equatorial Undercurrent. It ...
- eques
- in ancient Rome, a knight, originally a member of the cavalry and later of a political and administrative class as well as of the equestrian order. In early Rome the ... [5 Related Articles]
- equestrian act
- (from the article "circus") Continuing traditions from the days of Astley, scenic riding remained extremely popular in the 19th century, before the purely acrobatic style supplanted it. In scenic riding the equestrian, appropriately costumed, ...
- Equestrian Sports
- [13 Related Articles]
- equi-tonal system
- (from the article "African music") Two varieties are found: (1) equi-pentatonic (for example, in southern Uganda) and (2) equi-heptatonic (for example, in the lower Zambezi valley and in eastern Angola). These tone systems, with either ...
- Equiano, Olaudah
- self-proclaimed West African sold into slavery and later freed. His autobiography, The Interesting Narrative of the Life of Olaudah Equiano; or, Gustavus Vassa, the African, Written by ... [2 Related Articles]
- equidecomposable figure
- (from the article "number game") According to a comprehensive theory of equidecomposable figures that was outlined in detail about 1960, two polygons are said to be equidecomposable if it is possible to dissect, or decompose, ...
- equilibrant
- (from the article "mechanics") ...the same net force and the same net torque. The body can be brought into equilibrium by applying to it a real force at the same point, equal and opposite ...
- equilibrated structure
- (from the article "Gaudi, Antoni") ...the Guell Park (1900-14), in Barcelona, and in the Colonia Guell Church (1898-c. 1915), south of that city, he arrived at a type of structure that has come to be ...
- equilibrium
- (from the article "international payment and exchange") Commercial banks and other corporations involved in dealings across currency frontiers are usually able to see some (but not necessarily all) of their needs in advance. Their foreign exchange experts ...
- equilibrium
- (from the article "thermodynamics") A particularly important concept is thermodynamic equilibrium, in which there is no tendency for the state of a system to change spontaneously. For example, the gas in a cylinder with ...
- equilibrium
- in physics, the condition of a system when neither its state of motion nor its internal energy state tends to change with time. A simple mechanical body is said to ... [10 Related Articles]
- equilibrium constant
- (from the article "acid-base reaction") ...they must be present in equal concentrations to preserve electrical neutrality. The equilibrium involved, therefore, is as follows: 2SH &rlarr2; SH2+ + S−. The equilibrium constant (Ks') for this reaction ...
- equilibrium line
- (from the article "Arctic") The elevation at which accumulation and melting of glacier ice are equal is known as the equilibrium line and is roughly equivalent to the snow line. It frequently varies greatly ...
- equilibrium liquid line
- (from the article "industrial glass") ...takes place over a range of temperatures called the glass transformation range; in Figure 1 it is shown by the smooth departure of line abcg from line abcf, which is ...
- equilibrium potential
- (from the article "nervous system") ...equal. The system is then in electrochemical equilibrium. At equilibrium, one side of the membrane may still have a more negative charge than the other. The potential difference is then ...
- equilibrium separation
- (from the article "separation and purification") All equilibrium methods considered in this section involve the distribution of substances between two phases that are insoluble in one another. As an example, consider the two immiscible liquids benzene ...
- equimarginal principle
- (from the article "economics") ..."law of eventually diminishing marginal utility," a property of a wide range of utility functions, ensures that such an optimum exists. These are merely particular examples of the "equimarginal principle," ...
- equimolar countercurrent diffusion
- (from the article "gas") ...is quickly reached in which the number of heavy molecules traveling in one direction equals, on the average, the number of light molecules traveling in the opposite direction. This method, ...
- equine
- one of the mammal family of Equidae (order Perissodactyla) that includes the modern horses, zebras, and asses, as well as more than 60 species known only from fossils. [1 Related Articles]
- equine encephalitis
- severe viral disease of horses and mules. It sometimes affects birds, reptiles, and humans. [1 Related Articles]
- equine infectious anemia
- disease of horses that is caused by a non-oncogenic (non-cancer-causing) retrovirus. Bloodsucking insects, especially horseflies, transmit the disease. Signs, which appear about two weeks after exposure, include fever, progressive weakness, ...
- equine influenza
- (from the article "Equestrian Sports") Australian racing and breeding were thrown into chaos by an outbreak of equine influenza in New South Wales in mid-August. Queensland was also affected, but Victoria escaped. Australia previously had ...
- equine respiratory disease
- a complex of infections of viral origin, including equine viral rhinopneumonitis (viral abortion), equine viral arteritis, equine influenza and parainfluenza, and equine rhinovirus infection. The diseases are clinically indistinguishable. All ...
- equinoctial precession cycle
- (from the article "climate change") The 23,000-year and 41,000-year cycles are driven ultimately by two components of Earth's orbital geometry: the equinoctial precession cycle (23,000 years) and the axial-tilt cycle (41,000 years). Although the third ...
- equinox
- either of the two moments in the year when the Sun is exactly above the equator and day and night are of equal length; also, either of the two points ... [6 Related Articles]
|
|
