Lewisham: …village was listed as Levesham, Deptford was included as Depeford (“Deep Ford”), and Brockley was written as Brochelie. Lewisham was the site of fashionable mansions in the 17th and 18th centuries. With the construction of suburban railways in the mid-19th century, mansions and rural estates were replaced by middle-class housing…

The Deptford Trilogy, series of three novels by Robertson Davies, consisting of Fifth Business (1970), The Manticore (1972), and World of Wonders (1975). Throughout the trilogy, Davies interweaves moral concerns and bits of arcane lore. The novels trace the lives of three men from the small town of

ship: Naval architecture: The depth is measured at the middle of the length, from the top of the keel to the top of the deck beam at the side of the uppermost continuous deck. Draft is measured from the keel to the waterline, while freeboard is measured from the…

length, area, and volume: Length is the size of a line segment (see distance formulas), area is the size of a closed region in a plane, and volume is the size of a solid. Formulas for area and volume are based on lengths. For example, the area of a…

depth charge, a type of weapon that is used by surface ships or aircraft to attack submerged submarines. The first depth charges were developed by the British in World War I for use against German submarines. They consisted of a canister filled with explosives that was rolled or dropped off the

depth charge, a type of weapon that is used by surface ships or aircraft to attack submerged submarines. The first depth charges were developed by the British in World War I for use against German submarines. They consisted of a canister filled with explosives that was rolled or dropped off the

depth finder, device used on ships to determine the depth of water by measuring the time it takes a sound (sonic pulse) produced just below the water surface to return, or echo, from the bottom of the body of water. Sonic depth finders are in operation on practically every important class of ship,

depth finder, device used on ships to determine the depth of water by measuring the time it takes a sound (sonic pulse) produced just below the water surface to return, or echo, from the bottom of the body of water. Sonic depth finders are in operation on practically every important class of ship,

depth finder, device used on ships to determine the depth of water by measuring the time it takes a sound (sonic pulse) produced just below the water surface to return, or echo, from the bottom of the body of water. Sonic depth finders are in operation on practically every important class of ship,

isostasy: …this is known as the depth of compensation. The depth of compensation was taken to be 113 km (70 miles) according to the Hayford-Bowie concept, named for American geodesists John Fillmore Hayford and William Bowie. Owing to changing tectonic environments, however, perfect isostasy is approached but rarely attained, and some…

optics: Longitudinal magnification: …large, which explains why the depth of field (δp) of a microscope is extremely small. On the other hand, if m is small, less than one as in a camera, then m is very small, and all objects within a considerable range of distances (δp) appear substantially in focus.

perception: Innate versus learned perception: …research has dealt with visual depth perception in laboratory animals and human babies. One technique (the visual cliff) depends on the evident reluctance of young animals to step off the edge of what seems to be a steep cliff. The so-called visual cliff apparatus in one of its versions consists…

religious symbolism and iconography: Relation to other areas of culture: Psychoanalysis and depth psychology have reevaluated the role of the religious symbols and have used them in interpreting psychological processes, such as in the works of the Swiss psychiatrist Carl Jung. Jung interprets religious processes as symbolic ones and emphasizes the growing of individual and social symbols…

depth finder, device used on ships to determine the depth of water by measuring the time it takes a sound (sonic pulse) produced just below the water surface to return, or echo, from the bottom of the body of water. Sonic depth finders are in operation on practically every important class of ship,

France: Louis XVIII, 1815–24: When a new Chamber of Deputies was elected in August 1815, the ultras scored a sweeping victory; the surprised king, who had feared a surge of antimonarchical sentiment, greeted the legislature as la chambre introuvable (“the incomparable chamber”). But the political honeymoon was short-lived. Louis was shrewd enough,…

Paraguay: Constitutional framework: …the Congress, composed of the Chamber of Deputies and the Senate. All its members are elected by popular vote for five-year terms (with the exception of former presidents, who are appointed senators for life, though they are not entitled to vote) on the same date that the presidential elections are…

France: Louis XVIII, 1815–24: When a new Chamber of Deputies was elected in August 1815, the ultras scored a sweeping victory; the surprised king, who had feared a surge of antimonarchical sentiment, greeted the legislature as la chambre introuvable (“the incomparable chamber”). But the political honeymoon was short-lived. Louis was shrewd enough,…

Brazil: The legislature of Brazil: …Congress (Congresso Nacional), comprising the Chamber of Deputies (Câmara dos Deputados) and the Federal Senate (Senado Federal). Congress meets every year in two sessions of four and a half months each. The constitution gives Congress the power to rule in matters involving the federal government, particularly those related to fiscal…

Czech Republic: Constitutional framework: …bicameral Parliament consisting of a Chamber of Deputies (elected on a proportional basis for four-year terms) and a Senate (elected on a district basis for six-year terms).

Otto von Bismarck: Early career: …was elected to the Prussian Chamber of Deputies (the lower chamber of the Prussian Diet) and moved his family to Berlin. At this stage he was far from a German nationalist. He told one of his fellow conservatives, “We are Prussians, and Prussians we shall remain…. We do not wish…

Vittorio Orlando: …before being elected to the Chamber of Deputies in 1897. He served as minister of education in 1903–05 and of justice in 1907–09, resuming the same portfolio in 1914. He favoured Italy’s entrance into the war (May 1915), and in October 1917, in the crisis following the defeat of Italy’s…

Spain: Constitutional framework: …(cámaras): a lower chamber, the Congress of Deputies (Congreso de los Diputados), and an upper chamber, the Senate (Senado). As with most legislatures in parliamentary systems, more power is vested in the lower chamber. The Congress of Deputies has 350 members, who are elected to four-year terms by universal suffrage.…

Erwin Piscator: …that period were Rolf Hochhuth’s Deputy, a study of the role of Pope Pius XII during the Third Reich, and The Investigation by Peter Weiss, dealing with the Auschwitz concentration camp.

Chaim Grade: …memoir, Der mame’s Shabosim (1955; My Mother’s Sabbath Days), provides a rare portrait of prewar Vilna, as well as a description of refugee life in the Soviet Union and Grade’s return to Vilna after the war.

Dera Ghazi Khan, town, Punjab province, central Pakistan, in the floodplain of the Indus River. The town was founded by Ghāzī Khān, son of a Baloch chieftain and vassal of the Langah sultans of Multan. Incorporated as a municipality in 1867, the town was partially destroyed by a flood of the Indus

Dera Ismail Khan, town, Khyber Pakhtunkhwa province, Pakistan, just west of the Indus River. The town was named for Ismāʿīl Khan, son of the 15th-century Baloch chief who founded it. The old town, 4 miles (6 km) east, was washed away by the Indus River in 1823. The new town, laid out by Durrānī

Maurice Barrès: …National Energy”), made up of Les Déracinés (1897; “The Uprooted”), L’Appel au soldat (1900; “The Call to the Soldier”), and Leurs figures (1902; “Their Figures”). In these works he expounded an individualism that included a deep-rooted attachment to one’s native region. Les Déracinés tells the story of seven young provincials…

Egyptian Islamic Jihad: …as part of a “deradicalization” program, Egypt released more than 130 jailed members of EIJ in exchange for their renouncing violence. That year also saw a series of publications by Sayyid Imam al-Sharif renouncing terrorism as un-Islamic. Sharif’s writings drew a lengthy rebuttal from Zawahiri.

bicycle: The modern bicycle: …mechanisms, and by the 1920s derailleur gears that moved the chain from one sprocket to another had become established in France.

André Derain was a French painter, sculptor, printmaker, and designer who was one of the principal Fauvists. Derain studied painting in Paris at the Académie Carriere from 1898 to 1899. He developed his early style in association with Maurice de Vlaminck, whom he met in 1900, and with Henri

Western architecture: France: … in the 16th century and François Derand in the 17th analyzed the construction of the Gothic vault. They were quick to appreciate it as a highly efficient and economical framework of columns and ribs, supporting the webs of the vaults (which they regarded as no more than infilling panels carrying…

combinatorics: The principle of inclusion and exclusion: derangements: For a case in which there are N objects and n properties A1, A2, · · · An, the number N(A1, A2), for example, will be the number of objects that possess the properties A1, A2. If N(Ā

peshaṭ: …to typological or allegorical interpretations), derash (meaning “search,” in reference to biblical study according to the middot, or rules), and sod (meaning “secret,” or mystical interpretation). The first letters (PRDS) of these four words were first used in medieval Spain as an acronym forming the word PaRaDiSe to designate a…

derasha, in Judaism, a homily or sermon, generally preached by a rabbi in the synagogue. In a broad sense, the prophets were the first to preach to the Jewish people, but they had no official status as interpreters of the Law, nor did they address their words to a formal congregation. The first

derasha, in Judaism, a homily or sermon, generally preached by a rabbi in the synagogue. In a broad sense, the prophets were the first to preach to the Jewish people, but they had no official status as interpreters of the Law, nor did they address their words to a formal congregation. The first

derasha, in Judaism, a homily or sermon, generally preached by a rabbi in the synagogue. In a broad sense, the prophets were the first to preach to the Jewish people, but they had no official status as interpreters of the Law, nor did they address their words to a formal congregation. The first

derasha, in Judaism, a homily or sermon, generally preached by a rabbi in the synagogue. In a broad sense, the prophets were the first to preach to the Jewish people, but they had no official status as interpreters of the Law, nor did they address their words to a formal congregation. The first

derasha, in Judaism, a homily or sermon, generally preached by a rabbi in the synagogue. In a broad sense, the prophets were the first to preach to the Jewish people, but they had no official status as interpreters of the Law, nor did they address their words to a formal congregation. The first

Kosovo: Relief, drainage, and soils: The highest point is Mount Gjeravica (Ðeravica), at 8,714 feet (2,656 metres), on the western border with Albania. The interior terrain comprises high plains and rolling hills; about three-fourths of the country lies between about 1,600 and 5,000 feet (500 and 1,500 metres) above sea level. Limestone caves are…

Derbent, city, southeastern Dagestan republic, southwestern Russia. The city lies in the narrow gap between the Caspian Sea and the Caucasus Mountains at their closest approach. Derbent was founded in 438 ce as a fortress to guard the principal caravan route from southwestern Europe to Southwest

Derby, city, coextensive with the town (township) of Derby, New Haven county, southwestern Connecticut, U.S. It lies at the junction of the Housatonic and Naugatuck rivers, a few miles west of New Haven. Early settlement developed around a trading post established by Captain John Wakeman in 1642 in

Derby, city and unitary authority, geographic and historic county of Derbyshire, England. It lies along the River Derwent at an important route focus at the southern end of the Pennines. The unitary authority covers Derby and its suburbs. Just northeast of the city centre, at Little Chester, is the

Derby, town and port in West Kimberley shire, northern Western Australia. It lies on the western shore of a peninsula in King Sound, an inlet of the Indian Ocean, near the mouth of the Fitzroy River. Founded in 1883 to serve a pastoral district, Derby was named for Edward Henry Stanley, 15th earl

dress: The 19th century: …“billycock” and, in America, the derby, was introduced about 1850 by the hatter William Bowler. The straw boater, originally meant to be worn on the river, became popular for all summer activities. The homburg felt hat, introduced in the 1870s and popularized by the Prince of Wales (later King Edward…

John Claudius Loudon: …his most important work, the Derby Arboretum (1839–41).

eland: The giant, or Derby, eland (Taurotragus derbianus) inhabits woodlands filled with the broad-leaved doka tree in the northern savanna from Senegal to the Nile River. The common, or Cape, eland (T. oryx) ranges over the woodlands, plains, mountains, and subdeserts of eastern and southern Africa. The…

kiskadee: …for the call of the great kiskadee, or derby flycatcher (P. sulphuratus). The great kiskadee is reddish brown on the back, wings, and tail. The throat is white, the crown and sides of the head are black, and a white band surrounds the crown, which is surmounted by a yellow…

history of technology: Textiles: …British textile factory was the Derby silk mill built in 1719; and that the most far-reaching innovation in cotton manufacture was the introduction of steam power to drive carding machines, spinning machines, power looms, and printing machines. This, however, is probably to overstate the case, and the cotton innovators should…

Epsom Derby, one of the five classic English horse races, along with the Saint Leger, the Oaks, the 1,000 Guineas, and the 2,000 Guineas. With a field limited to three-year-old colts and fillies, the Derby is run on turf on the first Saturday in June over a 1 1 2 -mile (about 2,400-metre) course at

Derby ware, porcelain figures and servicewares made in Derby, central England, about 1750–1848. The best-known early figures were characterized by glaze retractions about the base. Known as “dry-edge” figures, their modeling and execution were excellent, the porcelain soft and heavy; a pair known

William Stanley, 6th earl of Derby: …company of actors known as Derby’s Men. The troupe, which should not be confused with Lord Strange’s Men (who were for a brief time known as Derby’s Men) performed at court in 1599–1601. It is possible that the first performance of A Midsummer Night’s Dream took place at his wedding…

woolly opossum: Derby’s woolly opossum (Caluromys derbianus) is found in Mexico, in Central America, and along the Pacific slope of Colombia and Ecuador. The brown-eared woolly opossum (Caluromys lanatus) occurs from Colombia and Venezuela to Paraguay. The bare-tailed woolly opossum (Caluromys philander) occurs throughout northern and eastern…

woolly opossum: Derby’s woolly opossum (Caluromys derbianus) is found in Mexico, in Central America, and along the Pacific slope of Colombia and Ecuador. The brown-eared woolly opossum (Caluromys lanatus) occurs from Colombia and Venezuela to Paraguay. The bare-tailed woolly opossum (Caluromys philander) occurs throughout northern and eastern…

Epsom Derby: …including Sir Charles Bunbury and Edward Stanley, the 12th earl of Derby, the group conceived the idea of a race on the Downs for three-year-old fillies, which was subsequently called “the Oaks” after the name of Derby’s nearby estate. Derby’s horse Bridget won the first running of the Oaks in…

Edward Stanley, 14th earl of Derby was an English statesman, important as leader of the Conservative Party during the long period 1846–68, thrice prime minister, and one of England’s greatest parliamentary orators; nevertheless, he has no great political reputation. Entering Parliament as a Whig in

Edward Stanley, 3rd earl of Derby was the second son of the 2nd earl, succeeding to the earldom on his father’s death. During his minority Cardinal Wolsey was his guardian, and as soon as he came of age he began to take part in public life. He helped to quell the rising known as the Pilgrimage of

James Stanley, 7th earl of Derby was a prominent Royalist commander in the English Civil War, who was executed by the Parliamentarians. Eldest son of William, the 6th earl, he was returned to Parliament for Liverpool in 1625 and on March 7, 1628, entered the House of Lords as Baron Strange. When

Epsom Derby, one of the five classic English horse races, along with the Saint Leger, the Oaks, the 1,000 Guineas, and the 2,000 Guineas. With a field limited to three-year-old colts and fillies, the Derby is run on turf on the first Saturday in June over a 1 1 2 -mile (about 2,400-metre) course at

Thomas Stanley, 1st earl of Derby was a prominent figure in the later stage of England’s Wars of the Roses. Great-grandson of Sir John Stanley (died c. 1414), who created the fortunes of the Stanley family, Thomas Stanley began his career as a squire to King Henry VI in 1454. At the Battle of Blore

William Stanley, 6th earl of Derby was an English writer and patron of the theatre who has been offered by some theorists as the true author of the plays of William Shakespeare. He succeeded his elder brother, Ferdinando, as the earl of Derby in 1594. Like Ferdinando (who was known as Lord

Derbyshire, administrative, geographic, and historic county in the East Midlands of England. The landscape varies from the bleak moorlands of the northern Peak District to the Trent lowlands in the south, and industry ranges from tourism in the Peak District to mining and engineering in the eastern

Derbyshire Dales, district, administrative and historic county of Derbyshire, England. About half of the district lies within the scenic Peak District National Park. The Romans mined lead in the area between Wirksworth and Castleton, and lead mining continued until the 19th century. Cotton textiles

Serbia: Energy: Facilities at the Ðerdap dam on the Danube generate significant electric power. The Bajina Bašta development on the Drina River ranks second as a hydroelectric generating source. Because the Drina forms part of Serbia’s border with Bosnia and Herzegovina, this creates a difficult problem for allocating power production.

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 Romania. It is about 2 miles (3 km) long and 530 feet (162 metres) wide, with towering rock cliffs that make it one…

Danube River: The economy: …of the largest hydroelectric projects—the Ðerdap (Djerdap) High Dam and the Iron Gate power station—was built jointly by Yugoslavia and Romania. Not only does the project produce hydroelectricity, but it also makes navigable what was once one of the most difficult stretches on the river.

mental disorder: Depersonalization: Derealization, or feelings of unreality concerning objects outside oneself, often occurs at the same time. Depersonalization may occur alone in neurotic persons but is more often associated with phobic, anxiety, or depressive symptoms. It most commonly occurs in younger women and may persist for many…

derebey, (Turkish: “valley lord”), any of several feudal lords in Anatolia who, from the early 18th century, became virtually independent of the Ottoman central government. After these feudatories disappeared in the 19th century, the term came to designate great hereditary landlords in southern and

derecho, windstorm traveling in a straight line characterized by gusts in excess of 93 km (58 miles) per hour and the production of a swath of wind-generated damage along a front spanning more than 400 km (250 miles) in length. Gustavus Hinrichs, a physics professor from the University of Iowa and

deregulation, removal or reduction of laws or other demands of governmental control. Deregulation often takes the form of eliminating a regulation entirely or altering an existing regulation to reduce its impact. Different countries make deregulation decisions through different channels. In the

East Dereham, town, Breckland district, administrative and historic county of Norfolk, eastern England. It is situated 16 miles (26 km) west-northwest of Norwich. The site of a 7th-century Christian convent, it was destroyed by invading Danes. The parish church, dating from the 12th century,

the Allman Brothers Band: … asked Duane to record with Derek and the Dominos in 1970. The jam-oriented At Fillmore East (1971) established the Allman Brothers as master improvisers, working within the blues-rock vocabulary but augmenting it with elements of jazz, country, and Latin music. Because of the band’s strong Southern roots, its success inspired…

British runner Derek Redmond didn’t win any Olympic medals, and he didn’t set any world records. In fact, he didn’t even make it to the finals of his event, the men’s 400-meter race. Nevertheless, he provided one of the most lasting images in Olympic history. Redmond’s first Olympic dreams were

Derekh Eretz, (Hebrew: “correct conduct,” or “way of the land”), in Judaism, the decorum, dignified behaviour, and gentlemanly conduct that should characterize a Jew at all times. Rabbinic scholars have applied the notion, for example, to all aspects of family life and marriage, to the qualities

Derekh Eretz, (Hebrew: “correct conduct,” or “way of the land”), in Judaism, the decorum, dignified behaviour, and gentlemanly conduct that should characterize a Jew at all times. Rabbinic scholars have applied the notion, for example, to all aspects of family life and marriage, to the qualities

Maya Deren was an influential director and performer who is often called the “mother” of American avant-garde filmmaking. Her films are not only poetic but instructive, offering insight into the human body and psyche and demonstrating the potential of film to explore these subjects. Deren

Maya Deren was an influential director and performer who is often called the “mother” of American avant-garde filmmaking. Her films are not only poetic but instructive, offering insight into the human body and psyche and demonstrating the potential of film to explore these subjects. Deren

Czechoslovak history: The establishment of the republic: … and the Social Democrats under Ivan Dérer. The strongest single party in Czechoslovakia’s opening period, the Social Democracy, was split in 1920 by internal struggles; in 1921 its left wing constituted itself as the Czechoslovak section of the Comintern (Third International). After the separation of the communists, the Social Democracy…

Ethiopia: Economy of Ethiopia: The communist Derg regime, which ruled from 1974 to 1991, nationalized all means of production, including land, housing, farms, and industry. Faced with uncertainties on their land rights, the smallholding subsistence farmers who form the backbone of Ethiopian agriculture became reluctant to risk producing surplus foods for…

Lough Derg, lake on the River Shannon, situated at the boundary of Counties Tipperary, Galway, and Clare, in Ireland. Lough Derg is 24 miles (39 km) long and 0.5 to 8 miles (1 to 13 km) wide. It is 37 square miles (96 square km) in area, with a maximum depth of 119 feet (36 m). The lake has many

Ethiopia: Economy of Ethiopia: The communist Derg regime, which ruled from 1974 to 1991, nationalized all means of production, including land, housing, farms, and industry. Faced with uncertainties on their land rights, the smallholding subsistence farmers who form the backbone of Ethiopian agriculture became reluctant to risk producing surplus foods for…

turbine: Mixed-flow turbines: A mixed-flow turbine of the Deriaz type uses swiveled, variable-pitch runner blades that allow for improved efficiency at part loads in medium-sized machines. The Deriaz design has proved useful for higher heads and also for some pumped storage applications (see below). It has the advantage of a lower runaway (sudden…

eel: Annotated classification: Family Derichthyidae (longneck eels) Relatively long snout. 2 genera with 3 species. Bathypelagic. Family Ophichthidae (snake eels and worm eels) Many branchiostegals, caudal reduced or absent. 52 genera with about 290 species. All oceans. Family Synaphobranchidae

derringer, pocket pistol produced in the early 19th century by Henry Deringer (q.v.), a Philadelphia

Henry Deringer was an American gunsmith who was the inventor of the Derringer pistol. He was the son of Henry Deringer, Sr., a colonial gunsmith who made Kentucky rifles. The younger Deringer began his career as an apprentice to a firearms maker in Richmond, Va. In 1806 he settled in Philadelphia

the Three Stooges: …1, 1988, North Hollywood, California), Joe DeRita (original name Joseph Wardell; b. July 12, 1909, Philadelphia—d. July 3, 1993, Woodland Hills).

linguistics: Chomsky’s grammar: …applicable; in doing so, a derivation can be constructed of one of the sentences generated by the grammar. If the rules are applied in the following order: (1), (2), (3), (3), (4), (5), (5), (6), (6), (7), (8), then assuming that “the” is selected on both applications of (5), “man”…

proof, in logic, an argument that establishes the validity of a proposition. Although proofs may be based on inductive logic, in general the term proof connotes a rigorous deduction. In formal axiomatic systems of logic and mathematics, a proof is a finite sequence of well-formed formulas

derivation, in descriptive linguistics and traditional grammar, the formation of a word by changing the form of the base or by adding affixes to it (e.g., “hope” to “hopeful”). It is a major source of new words in a language. In historical linguistics, the derivation of a word is its history, or

Robert Duncan: …of the 1950s appear in Derivations: Selected Poems, 1950–56 (1968). The Opening of the Field (1960), Roots and Branches (1964), Bending the Bow (1968), and Ground Work (1984) are collections of his finest poems. The first of these contains his most famous poem, “

derivative, in mathematics, the rate of change of a function with respect to a variable. Derivatives are fundamental to the solution of problems in calculus and differential equations. In general, scientists observe changing systems (dynamical systems) to obtain the rate of change of some variable

property: …previous owner or owners (“derivative acquisition”). Most forms of such transfer are voluntary on the part of the previous owner. “Sale,” the voluntary exchange of property for money, is the most common of these. A “donation,” or gift, is another voluntary form. Succession to property upon death of the…

angiosperm: Vegetative structures: …the plant body as a derivative cell. The displaced derivative cell may divide several times as it differentiates (changes in structure and physiology) from a meristemic cell into a mature cell, but only initial cells remain permanently in the apical meristem. However, although most permanently differentiated derivative cells are nondividing…

In finance, a derivative is a security whose value is derived from, or dependent upon, the value of another security. Commonly traded derivatives

sample preparation: Derivatization: In many analytical procedures it is necessary to convert the analyte chemically to another form to make its measurement possible. While infrared absorption techniques for organic analytes are usually direct methods, nearly all quantitative ultraviolet and visible absorption spectrophotometric methods are derivatizations in which…

census: Modern census procedure: …questions on the schedule; and derived data, the facts discovered by classifying and interrelating the answers to various questions. Direct information, in turn, is of two sorts: items such as name, address, and the like, used primarily to guide the enumeration process itself; and items such as birthplace, marital status,…

scar: Dermabrasion, i.e., abrading the skin in a controlled manner, can be used to remove unsightly scars that have resulted from surgery or acne. Small scars can best be prevented by keeping a scab from forming on a wound through the use of nonstick bandages. The…

Colorado tick fever: …Rocky Mountain wood tick (Dermacentor andersoni).. Colorado tick fever is relatively rare; between 2003 and 2022, just 223 cases were reported in the United States.

Rocky Mountain spotted fever: …States, the common dog tick, Dermacentor variabilis, which attacks humans, also acts as a carrier. In the southwestern United States, human cases are also traced to the lone star tick, Amblyomma americanum. In Brazil the common carrier is Amblyomma cajennense.

chondrichthyan: Distinguishing features: …are structurally minute teeth, called dermal denticles, each consisting of a hollow cone of dentine surrounding a pulp cavity and covered externally by a layer of hard enamel-like substances called vitrodentine. The scales covering the skin do not grow throughout life, as they do in bony fishes, but have a…

cutaneous leishmaniasis, infectious skin disease that is caused by any of multiple different trypanosome parasites in the genus Leishmania. The disease is the most commonly occurring form of leishmaniasis and is prevalent especially in the Americas, Asia, the Mediterranean, and the Middle East.