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enterogastrone ... epic
enterogastrone
a hormone secreted by the duodenal mucosa when fatty food is in the stomach or small intestine; it is also thought to be released when sugars and proteins are in ...
enterokinase
proteolytic enzyme (q.v.), secreted from the duodenal mucosa, that changes the inactive pancreatic secretion trypsinogen into trypsin, one of the enzymes that digest proteins. Enterokinase is believed to be produced ...
Enterprise
city, Coffee county, southeastern Alabama, U.S., about 90 miles (145 km) southeast of Montgomery. It was founded in 1881 by John Henry Carmichael near the community of Drake Eye. In ...
enterprise unionism
the organization of a single trade union within one plant or multiplant enterprise rather than within a craft or industry. It is especially prevalent in Japan, where nearly all Japanese ...
enthalpy
the sum of the internal energy and the product of the pressure and volume of a thermodynamic system. Enthalpy is an energy-like property or state function-it has the dimensions of ...
enthymeme
in syllogistic, or traditional, logic, name of a syllogistic argument that is incompletely stated. In the argument "All insects have six legs; therefore, all wasps have six legs," the minor ...
Entisol
one of the 12 soil orders in the U.S. Soil Taxonomy. Entisols are soils defined by the absence or near absence of horizons (layers) that clearly reflect soil-forming processes. Occupying ...
entodiniomorph
any ciliated protozoan of the order Entodiniomorphida. They are harmless parasites in the rumen and intestines of cattle, horses, and other herbivores. Entodiniomorphs are common and extremely numerous: one cow ...
entomology
branch of zoology dealing with the scientific study of insects. The Greek word entomon, meaning "notched," refers to the segmented body plan of the insect. The zoological categories of taxonomy, ...
entoproct
any member of the phylum Entoprocta, a group of aquatic invertebrate animals, composed of more than 100 species. Entoprocts occur throughout the world, primarily in marine habitats, although one genus, ...
entrapment
in law, instigation or inducement of a person into the commission of a crime by an officer of the law.
Entre Rios
provincia, eastern Argentina. It is located between two rivers, the Parana (west) and the Uruguay (east), the latter of which forms the Uruguayan border; the province's name means "between rivers." ...
entrechat
(probably from Italian intrecciare: "to weave," or "to braid"), jump in ballet, beginning in the fifth position, during which the dancer crosses his straight legs at the lower calf. Numerous ...
entrelacement
a literary technique in which several simultaneous stories are interlaced in one larger narrative. This technique allows digression and presents opportunities for moral and ironic commentary while not disturbing the ...
entropion
turning in of the border of the lower eyelid, a condition sometimes occurring in elderly persons. It is caused by (1) spasms of the orbicularis oculi, a muscle that extends ...
entropy
the measure of a system's energy that is unavailable for work. Since work is obtained from order, the amount of entropy is also a measure of the disorder, or randomness, ...
Enugu
state, south-central Nigeria. It was created in 1991 from the eastern two-thirds of Anambra state. Enugu is bounded by the states of Kogi and Benue to the north, Cross River ...
Enugu
town, capital of Enugu state, south-central Nigeria, at the foot of the Udi Plateau. It is on the railroad from Port Harcourt, 150 miles (240 km) south-southwest, and at the ...
enuresis
elimination disorder characterized by four factors: the repeated voluntary or involuntary voiding of urine during the day or night into bedding or clothing; two or more occurrences per month for ...
envelope
in musical sound, the attack, sustain, and decay of a sound. Attack transients consist of changes occurring before the sound reaches its steady-state intensity. Sustain refers to the steady state ...
envelope
in poetry, a device in which a line or a stanza is repeated so as to enclose a section of verse, as in Sir Thomas Wyat's "Is it Possible?":Is it ...
Enver Pasa
Ottoman general and commander in chief, a hero of the Young Turk Revolution of 1908, and a leading member of the Ottoman government from 1913 to 1918. He played a ...
Envigado
city, Antioquia departamento, northwestern Colombia. It is situated near the Porce River, between the Occidental and Central ranges of the Andes Mountains, at an elevation of 5,085 feet (1,550 m) ...
environment
the complex of physical, chemical, and biotic factors that act upon an organism or an ecological community and ultimately determine its form and survival.
environmental engineering
the development of processes and infrastructure for the supply of water, the disposal of waste, and the control of pollution of all kinds. These endeavours protect public health by preventing ...
environmental geology
field concerned with applying the findings of geologic research to the problems of land use and civil engineering. It is closely allied with urban geology and deals with the impact ...
environmental law
principles, policies, directives, and regulations enacted and enforced by local, national, or international entities to regulate human treatment of the nonhuman world. The vast field covers a broad range of ...
Environmental Protection Agency
agency of the U.S. government that sets and enforces national pollution-control standards.
environmental sculpture
20th-century art form intended to involve or encompass the spectators rather than merely to face them; the form developed as part of a larger artistic current that sought to break ...
environmental theatre
a branch of the New Theatre movement of the 1960s, the aim of which is to heighten audience awareness of theatre by eliminating the distinction between the audience's and the ...
environmental works
infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations, and waste disposal facilities. ...
environmentalism
political and ethical movement that seeks to improve and protect the quality of the natural environment through changes to environmentally harmful human activities; through the adoption of forms of political, ...
envoi
the usually explanatory or commendatory concluding remarks to a poem, essay, or book. The term is specifically used to mean a short, fixed final stanza of a poem (such as ...
Enzinas, Francisco de
Spanish scholar and humanist, one of the most important figures of the abortive Spanish Reformation.
enzyme
a substance that acts as a catalyst in living organisms, regulating the rate at which chemical reactions proceed without itself being altered in the process.
enzyme analysis
in blood serum, measurement of the activity of specific enzymes in a sample of blood serum, usually for the purpose of identifying a disease. The enzymes normally are concentrated in ...
Eocene Epoch
major worldwide division of the Tertiary Period that began about 57.8 million years ago and ended about 36.6 million years ago. It follows the Paleocene Epoch and precedes the Oligocene ...
Eocene Series
second of five main divisions (in ascending order) in the Tertiary System, representing all those rocks on a global basis that were deposited during the Eocene Epoch (57.8-36.6 million years ...
Eohippus
genus of ancestral horse. See dawn horse.
EOKA
underground nationalist movement of Greek Cypriots dedicated to the expulsion of the British from Cyprus (achieved in 1960) and the eventual union (Greek enosis) of Cyprus with Greece.
eolian sound
sound produced by wind when it encounters an obstacle. Fixed objects, such as buildings and wires, cause humming or other constant sounds called eolian tones; moving objects, such as twigs ...
Eolie Islands
volcanic group in the Tyrrhenian Sea (of the Mediterranean) off the north coast of Sicily, Italy. The group, with a total land area of 34 square miles (88 square km), ...
Eon de Beaumont, Charles, chevalier d'
(knight of) French secret agent from whose name the term "eonism," denoting the tendency to adopt the costume and manners of the opposite sex, is derived.
Eos
in Greco-Roman mythology, the personification of the dawn. According to the Greek poet Hesiod, she was the daughter of the Titan Hyperion and the Titaness Theia and sister of Helios, ...
Eospirifer
genus of extinct brachiopods, or lamp shells, found as fossils in Middle Silurian to Lower Devonian marine rocks (the Silurian Period ended and the following Devonian Period began about 408 ...
Eotvos, Jozsef, Baro
(Baron) novelist, essayist, educator, and statesman, whose life and writings were devoted to the creation of a modern Hungarian literature and to the establishment of a modern democratic Hungary.
Eotvos, Roland, Baron von
Hungarian physicist who introduced the concept of molecular surface tension. His study of the Earth's gravitational field-which led to his development of the Eotvos torsion balance, long unsurpassed in precision-resulted ...
Epaminondas
Theban statesman and military tactician and leader who was largely responsible for breaking the military dominance of Sparta and for altering permanently the balance of power among the Greek states. ...
Epanagoge
(Greek: "Introduction"), legal code compiled c. 879, during the reign of the Byzantine emperor Basil I, intended as the introduction to a comprehensive collection of laws to be published in ...
epanalepsis
the repetition of a word or phrase after intervening language, as in the first line of Algernon Charles Swinburne's "Itylus":Swallow, my sister, O sister swallow,How can thine heart be full ...
eparch
the leading Byzantine government official from the 6th to the 11th century, entrusted with the authority to maintain public order and safety in Constantinople (modern Istanbul), the Byzantine capital. Called ...
Epe
town and port, Lagos State, southwestern Nigeria; it lies on the north bank of the coastal Lagos Lagoon and has road connections to Ijebu-Ode and Ikorodu. A traditional settlement of ...
epee
blunted sword developed in the 19th century for use in fencing practice and competition. The epee was patterned after the epee du combat, the standard dueling sword of its day. ...
epeirogeny
in geology, broad regional upwarp of the cratonic (stable interior) portions of continents. In contrast to orogeny (q.v.), epeirogeny takes place over broad, nonlinear areas, is relatively slow, and results ...
epergne
dining table centrepiece-usually of silver-that generally sits on four feet supporting a central bowl and four or more dishes held by radiating branches and used to serve pickles, fruits, nuts, ...
Epernay
town, Marne departement, Champagne-Ardenne region, northeastern France. It lies on the left bank of the Marne River, 17 miles (27 km) south-southwest of Reims. The archbishops of Reims held it ...
Epernon, Jean-Louis de Nogaret de La Valette, Duke d'
one of the most powerful new magnates in French politics at the turn of the 17th century.
ephebus
in ancient Greece, any male who had attained the age of puberty. In Athens it acquired a technical sense, referring to young men aged 18-20. From about 335 BC they ...
Ephedra
the only genus of the family Ephedraceae, an evolutionally early group of low, straggling, or climbing gymnospermous desert shrubs and the only family in the order Ephedrales. Ephedra contains about ...
ephedrine
alkaloid used as a decongestant drug. It is obtainable from plants of the genus Ephedra, particularly the Chinese species E. sinica, and it has been used in China for more ...
ephemeris
table giving the positions of one or more celestial bodies, often published with supplementary information. Ephemerides were constructed as early as the 4th century BC and are still essential today ...
Ephemeris Time
(ET), the first dynamical time scale in history; it was defined by the International Astronomical Union in the 1950s and was superseded by Barycentric Dynamical Time in 1984. (See dynamical ...
ephemeropteran
any member of the order Ephemeroptera, comprising the group of insects known as mayflies. Other common names for the winged stages are shadfly, sandfly, dayfly, fishfly, and drake. The aquatic ...
Ephesians, Letter of Paul to the
New Testament writing once thought to have been composed by Paul in prison but more likely the work of one of Paul's disciples, who probably wrote the text sometime before ...
Ephesus
the most important Greek city in Ionian Asia Minor, the ruins of which lie near the modern village of Selcuk in western Turkey.
Ephesus, councils of
three assemblies held in Asia Minor to resolve problems of the early Christian Church.
Ephialtes
leader of the radical democrats at Athens in the 460s, who by his reforms prepared the way for the final development of Athenian democracy. His hostility toward Sparta and his ...
ephod
part of the ceremonial dress of the high priest of ancient Israel described in the Old Testament (Ex. 28:6-8; 39:2-5). It was worn outside the robe and probably kept in ...
ephor
(Greek ephoros), title of the highest Spartan magistrates, five in number, who with the kings formed the main executive wing of the state. In antiquity, time periods were recorded by ...
Ephorus
Greek historian, the author of the first universal history, who, despite his defects, was esteemed in classical times and is considered the best of the historians writing in his period.
Ephraem Syrus, Saint
Christian theologian, poet, hymnist, and doctor of the church who, as doctrinal consultant to Eastern churchmen, composed numerous theological-biblical commentaries and polemical works that, in witnessing to the common Christian ...
Ephraim
one of the 12 tribes of Israel that in biblical times comprised the people of Israel who later became the Jewish people. The tribe was named after one of the ...
Ephrata
city, seat (1909) of Grant county, central Washington, U.S., near the south end of Grand Coulee Dam. Settled in 1882 by ranchers who raised horses, the community was named in ...
Ephrata Community
U.S. Protestant monastic settlement, an offshoot of the Germantown Dunkers, founded in 1732 by Johann Conrad Beissel on Cocalico Creek in Lancaster County, Pa.; the present town of Ephrata grew ...
Epi
island of Vanuatu, in the southwestern Pacific Ocean. Volcanic in origin, it is 27 mi (43 km) long and 11 mi wide, with an area of 171 sq mi (444 ...
epic
long narrative poem recounting heroic deeds, although the term has also been loosely used to describe novels, such as Tolstoy's War and Peace, and motion pictures, such as Eisenstein's Ivan ...