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diblock copolymer (chemistry)
...molecules) under the action of anionic initiators. Various polymerization procedures are followed, including building up a styrene chain, adding on butadiene or isoprene units to form a diblock copolymer, and then linking two diblock chains to form the triblock copolymer. In the final solidified product the polystyrene end-blocks of adjacent chains collect together in small domains,......
Dibner, Bern (Russian engineer)
American engineer and historian of science....
Dibon (ancient city, Jordan)
ancient capital of Moab, located north of the Arnon River in west-central Jordan. Excavations conducted there since 1950 by the archaeologists affiliated with the American School of Oriental Research in Jerusalem have uncovered the remains of several city walls, a square tower, and numerous buildings. The pottery found on the site dates from Early Bronze (c. 3200–c. 2300 ...
diborane (chemical compound)
...both neutral and negative (anionic), are known. The hydrides of boron are more numerous than those of any other element except carbon. The simplest isolable borane is B2H6, diborane(6). (The Arabic numeral in parentheses indicates the number of hydrogen atoms.) It is one of the most extensively studied and most synthetically useful chemical intermediates. It is......
Dibothriocephalus latus (flatworm)
...of infection is inadequately cooked meat. Tapeworms found in beef and pork only give rise to symptoms if their number and size cause intestinal obstruction. Diphyllobothrium latum, a fish tapeworm, may cause a severe anemia similar to pernicious anemia, because it consumes most of the vitamin B12 in the diet of the host....
Dibotryon morbosum (fungus)
disease of wild and cultivated plums, cherries, and apricots in North America caused by the fungus Dibotryon morbosum. Infected twigs, branches, and fruit show light brown swellings that turn velvety olive-green in late spring. By autumn, hard, rough, coal-black knots girdle and kill affected parts. Older knots, often riddled by insects, stunt and kill the tree. Black knot can be......
Dibranchia (taxonomy)
...the cephalopods is fraught with difficulties. Early specialists divided the living cephalopods into Octopoda and Decapoda without relation to their internal structure; these were both placed in the Dibranchia, in contrast to all fossil forms, which were considered as Tetrabranchia because Nautilus has four gills rather than two. This unnatural classification, accepted by the French......
dibromoethane (chemical compound)
a colourless, sweet-smelling, nonflammable, toxic liquid belonging to the family of organohalogen compounds. Ethylene bromide was once used in conjunction with lead-containing antiknock agents as a component of gasoline; however, this use disappeared with the banning of ...
Dibrugarh (India)
city, northeastern Assam state, northeastern India. Dibrugarh is situated along the Brahmaputra River and is an important commercial centre, a port, and a rail terminus. Its industries include tea processing and rice and oilseed milling. The Assam Medical College, a law college, and other colleges are affiliated with Dibrugarh University. Th...
Dibrugarh University (university, Dibrugarh, India)
city, northeastern Assam state, northeastern India. Dibrugarh is situated along the Brahmaputra River and is an important commercial centre, a port, and a rail terminus. Its industries include tea processing and rice and oilseed milling. The Assam Medical College, a law college, and other colleges are affiliated with Dibrugarh University. Th...
dibs (game)
game of great antiquity and worldwide distribution, now played with stones, bones, seeds, filled cloth bags, or metal or plastic counters (the jacks), with or without a ball. The name derives from “chackstones”—stones to be tossed. The knuckle, wrist, or ankle bones (astragals) of goats, sheep, or other animals also have been used in play. Such objects have been found in prehi...
Dibutades (ancient Greek sculptor)
ancient Greek clayman, who, according to the Roman writer Pliny the Elder, was the first modeler in clay. The story is that his daughter, smitten with love for a youth at Corinth, where they lived, drew upon the wall the outline of his shadow and that upon this outline her father modeled a face of the yout...
DIC (optics)
Meanwhile, differential interference contrast (DIC) was developed by Polish-born French physicist Georges Nomarski in 1952. A beam-splitting Wollaston prism emits two beams of polarized light that are plane-polarized at right angles to each other and that slightly diverge. The rays are focused in the back plane of the objective, where they pass through a composite prism that is isotropic at the......
DIC insurance
Increasing international business activity has caused greater use of policies generally termed difference-in-conditions insurance (DIC). The DIC policy insures property and liability losses not covered by basic insurance contracts. It can be written to insure almost any peril, including earthquake and flood, subject to deductibles and stated exclusions. It is often written on an all-risk basis.......
Dicaearchus (Greek philosopher)
Greek Peripatetic philosopher of Messina in Sicily, a pupil of Aristotle and a scholar of wide learning who influenced such people as Cicero and Plutarch. He spent most of his life in Sparta. Neglecting systematic philosophy, he cultivated special branches of knowledge, including the history of literature and of music, biography, political scien...
Dicaeidae (bird family)
songbird family, of the order Passeriformes, including the diamondbird and flowerpecker groups....
Dicaeum cruentatum (bird)
...twittering, in trees and shrubs where they find small fruits. The pouchlike, felted nest may have a porched side entrance. A species seen in gardens from India and southern China to Indonesia is the scarlet-backed flowerpecker (Dicaeum cruentatum); 9 cm (3.5 inches) long, it is red, black, and white. The pygmy flowerpecker (D. pygmeum) of the Philippines is only about 6 cm (2......
Dicaeum pygmeum (bird)
...A species seen in gardens from India and southern China to Indonesia is the scarlet-backed flowerpecker (Dicaeum cruentatum); 9 cm (3.5 inches) long, it is red, black, and white. The pygmy flowerpecker (D. pygmeum) of the Philippines is only about 6 cm (2 inches) long. The largest flowerpeckers are only about 23 cm (9 inches) in total length....
dicalcium silicate (chemical compound)
Portland cement is made up of four main compounds: tricalcium silicate (3CaO · SiO2), dicalcium silicate (2CaO · SiO2), tricalcium aluminate (3CaO · Al2O3), and a tetra-calcium aluminoferrite (4CaO · Al2O3Fe2O3). In an abbreviated notation differing from the normal atomic symbols,......
DiCamillo, Kate (American author)
American author, whose award-winning children’s books commonly confronted themes of death, separation, and loss, while her plots and prose were often exuberant and assured. She won a Newbery Medal in 2004 for The Tale of Despereaux (2003)....
DiCamillo, Katrina Elizabeth (American author)
American author, whose award-winning children’s books commonly confronted themes of death, separation, and loss, while her plots and prose were often exuberant and assured. She won a Newbery Medal in 2004 for The Tale of Despereaux (2003)....
Dicamptodon (amphibian genus)
...and 1 species is permanently larval; Paleocene (65.5 million–55.8 million years ago) to present; northwestern United States and extreme southwestern Canada; 1 genus, Dicamptodon, and 4 species.Family Plethodontidae (lungless salamanders)Very small to moderate size,...
Dicamptodontidae (amphibian family)
...3 fingers and toes; external gills absent, but spiracle open; Late Cretaceous to present; eastern North America; 1 genus, Amphiuma, and 3 species.Family Dicamptodontidae (giant salamanders)Large salamanders, to 35 cm; stout-bodied and large-headed with large, long limbs; larvae live for sev...
DiCaprio, Leonardo (American actor and producer)
American actor and producer, who emerged in the 1990s as one of Hollywood’s leading performers, noted for his portrayals of unconventional and complex characters....
DiCaprio, Leonardo Wilhelm (American actor and producer)
American actor and producer, who emerged in the 1990s as one of Hollywood’s leading performers, noted for his portrayals of unconventional and complex characters....
dicarboxylic acid (chemical compound)
Unbranched-chain dicarboxylic acids contain two COOH groups. As a result they can yield two kinds of salts. For example, if oxalic acid, HOOCCOOH, is half-neutralized with sodium hydroxide, NaOH (i.e., the acid and base are in a 1:1 molar ratio), HOOCCOONa, called sodium acid oxalate or monosodium oxalate, is obtained. Because one COOH group is still present in the compound, it has the......
dicastery (ancient Greek law)
a judicial body in ancient Athens. Dicasteries were divisions of the Heliaea from the time of the democratic reforms of Cleisthenes (c. 508–507 bc), when the Heliaea was transformed from an appellate court to a court with original jurisdiction. Each year 6,000 volunte...
dice (game pieces)
small objects (polyhedrons) used as implements for gambling and the playing of social games. The most common form of die is the cube, with each side marked with from one to six small dots (spots). The spots are arranged in conventional patterns and placed so that spots on opposite sides always add up to seven: one and six, two and five, three and four. There are, however, many d...
dice game (game)
...or “perfect information,” where the current position is fully visible to all players throughout the game. This characterization is inadequate, however. For example, in backgammon, a dice game, the starting position is predetermined and equal, and all subsequent moves are fully known to both players. What constitutes the imperfection of its information is the unpredictability of......
Dice Thrown Never Will Annul Chance (poem by Mallarmé)
...meetings at his tiny flat in Paris were attended by well-known writers, painters, and musicians of the time. All this perhaps decreased his need to seek refuge in an ideal world, and in Un Coup de dés jamais n’abolira le hasard, poème (“A Throw of Dice Will Never Abolish the Hazard, Poem”), the work that appeared in 1897, the year before his death, he.....
Dice-K (Japanese baseball player)
Japanese professional baseball pitcher who became a star player in both Japan and the United States. In 2007, his first season of Major League Baseball (MLB), he helped the Boston Red Sox win a World Series championship....
Dicenta, Joaquín (Spanish dramatist)
...character, motivation, and situation and serious bourgeois dramas of social problems. In 1904 he shared the Nobel Prize for Literature with the Provençal poet Frédéric Mistral. Joaquín Dicenta utilized class conflict and social injustice as themes, dramatizing working-class conditions in Juan José (performed 1895)....
Dicentra (plant genus)
genus of flowering plants of the poppy family (Papaveraceae) that includes such popular garden representatives as bleeding heart, Dutchman’s-breeches, and squirrel corn....
Dicentra canadensis (plant)
(Dicentra canadensis), wildflower of eastern and midwestern North American woodlands belonging to the poppy family (Papaveraceae). It gets its common name from the nodulelike, yellow tubers that cluster along the rootstock. The fernlike leaves a...
Dicentra cucullaria (plant)
(species Dicentra cucullaria), plant of the poppy family (Papaveraceae) named for its sprays of tremulous, yellow-tipped white flowers that fancifully resemble the wide-legged, traditional pantaloons worn by Dutch men. The plant is native throug...
Dicentra eximia (plant)
...feet) tall. There is also a white form, D. spectabilis alba. The deeply cut leaf segments are larger than those of other cultivated species of Dicentra, such as the shorter eastern, or wild, bleeding heart (D. eximia), which produces sprays of small pink flowers from April to September in the Allegheny mountain region of eastern North America. The Pacific, or western,......
Dicentra formosa (plant)
...as the shorter eastern, or wild, bleeding heart (D. eximia), which produces sprays of small pink flowers from April to September in the Allegheny mountain region of eastern North America. The Pacific, or western, bleeding heart (D. formosa) of mountain woods, which ranges from California to British Columbia, has several varieties of garden interest....
Dicentra spectabilis (plant)
any of several species of Dicentra, a genus of herbaceous flowering plants of the poppy family (Papaveraceae). The old garden favourite is the Japanese D. spectabilis, widespread for its small rosy-red and white, heart-shaped flowers dangling from arching stems about 60 centimetres (2 feet) tall. There is also a white form, D. spectabilis alba. The deeply cut leaf segments......
Dicentrarchus labrax (fish)
The better-known moronids include the European bass (Morone, or Dicentrarchus, labrax), found from Scandinavia to the Mediterranean, often in river mouths; the striped bass, or striper, a renowned American food and sport fish striped with black and growing to about 14 kg (30 pounds); the white bass (M. chrysops), a dark-striped river fish of the eastern United......
DICER (enzyme)
...organisms. Each miRNA is produced from a precursor transcript (pre-miRNA). After the pre-miRNA migrates from the nucleus into the cytoplasm, it is cleaved into a mature miRNA by an enzyme known as DICER. The mature miRNA molecule then binds to an RNA-induced silencing complex (RISC), which contains multiple proteins, including a ribonuclease enzyme. The miRNA nucleotide sequence directs the......
“Diceria dell’untore” (work by Bufalino)
The case of Gesualdo Bufalino is not dissimilar to that of Satta. Bufalino’s first novel, Diceria dell’untore (1981; The Plague-Sower), which he published after a lifelong career in teaching, won the 1981 Campiello Prize for fiction awarded by the industrialists of the Veneto region. He went on to publish several other novels. Il sorriso dell’ig...
Dicerorhinus sumatrensis (mammal)
one of three Asian species of rhinoceros and the smallest living rhinoceros. Both females and males typically weigh less than 850 kg (1,870 pounds); they are 2.5 metres (8 feet) long and 1.5 metres (5 feet) high at the shoulder. Sumatran rhinoceroses are the most ancient of the five rhinoceros species and ...
Diceros bicornis (mammal)
the third largest rhinoceros and one of two African species of rhinoceros. The black rhinoceros typically weighs between 700 and 1,300 kg (1,500 and 2,900 pounds); males are the same size as females. It stands 1.5 metres (5 feet) high at the shoulder and is 3.5 metres (11.5 feet) long. The black rhinoceros occupies a variety of habitats, including open plains,...
Dicey, Albert Venn (British jurist)
British jurist whose Lectures Introductory to the Study of the Law of the Constitution (1885) is considered part of the British constitution, which is an amalgam of several written and unwritten authorities. For this treatise, which is noted for its application of legal positivism to the study of British ...
Dichapetalaceae (plant family)
In Chrysobalanaceae, Balanopaceae, Trigoniaceae, Dichapetalaceae, and Euphroniaceae, each ovary chamber usually has only two ovules, and the seeds have at most slight endosperm. Within this group, Chrysobalanaceae, Trigoniaceae, Dichapetalaceae, and Euphroniaceae are especially close. All have leaf margins that lack teeth; there are often flat, rarely raised glands on the lower surface of the......
dichasium (plant structure)
A dichasium is one unit of a cyme and is characterized by a stunted central flower and two lateral flowers on elongated pedicels, as in the wood stichwort (species Stellaria nemorum)....
dichloro(2-chlorovinyl)arsine (chemical compound)
in chemical warfare, poison blister gas developed by the United States for use during World War I. Chemically, the substance is dichloro(2-chl...
dichlorobenzene (chemical compound)
any of three isomeric organohalogen compounds known as 1,2-, 1,3-, or 1,4-dichlorobenzene (also called ortho-, meta-, and para-dichlorobenzene, respectively). Both 1,2- and 1,3-dichlorobenzene are liquids. 1,2-Dichlorobenzene is used as a solvent, as an insecticide, and in the manufacture of other chemicals, part...
dichlorodiethyl sulfide (chemical compound)
Blister agents were also developed and deployed in World War I. The primary form of blister agent used in that conflict was sulfur mustard, popularly known as mustard gas. Casualties were inflicted when personnel were attacked and exposed to blister agents like sulfur mustard or lewisite. Delivered in liquid or vapour form, such weapons burned the skin, eyes, windpipe, and lungs. The physical......
dichlorodifluoromethane (chemical compound)
...the E.I. du Pont de Nemours & Company in Wilmington, Del. CFCs were originally developed as refrigerants during the 1930s. Some of these compounds, especially trichlorofluoromethane (CFC-11) and dichlorodifluoromethane (CFC-12), found use as aerosol-spray propellants, solvents, and foam-blowing agents. They are well suited for these and other applications because they are nontoxic and......
dichlorodiphenyltrichloroethane (chemical compound)
a synthetic insecticide belonging to the family of organic halogen compounds, highly toxic toward a wide variety of insects as a contact poison that apparently exerts its effect by disorganizing the nervous system...
dichloromethane (chemical compound)
a colourless, volatile, practically nonflammable liquid belonging to the family of organic halogen compounds. It is extensively used as a solvent, especially in paint-stripping formulations....
dichlorvos (drug)
a colourless, volatile, practically nonflammable liquid belonging to the family of organic halogen compounds. It is extensively used as a solvent, especially in paint-stripping formulations.......
dichogamy (biological process)
...pistils), a common way of preventing self-fertilization is to have the pollen shed either before or after the period during which the stigmas on the same plant are receptive, a situation known as dichogamy. The more usual form of dichogamy, which is found especially in such insect-pollinated flowers as fireweed (Epilobium angustifolium) and salvias (Salvia species), is......
Dichondra (plant genus)
any of several species of low, creeping plants of the morning glory family (Convolvulaceae) that are used in warm climates as grass substitutes. The plants are from 2 12 to 8 cm (1 to 3 inches) high and spread by runners....
Dichondra carolinensis (plant)
D. carolinensis, native to southeastern North America, is so similar to the Old World D. repens that it is sometimes given as D. repens variety carolinensis. Its round, bright-green leaves, indented where they join the long stalks, are 2 cm broad....
Dichondra repens (plant)
D. carolinensis, native to southeastern North America, is so similar to the Old World D. repens that it is sometimes given as D. repens variety carolinensis. Its round, bright-green leaves, indented where they join the long stalks, are 2 cm broad.......
Dichondra repens carolinensis (plant)
D. carolinensis, native to southeastern North America, is so similar to the Old World D. repens that it is sometimes given as D. repens variety carolinensis. Its round, bright-green leaves, indented where they join the long stalks, are 2 cm broad....
dichoptic eye (zoology)
...eyes of flies often occupy most of the surface of the head, especially in males, where the eyes may meet in the middle line (holoptic). In female flies, with few exceptions, the eyes do not meet (dichoptic). In some families, notably robber flies and small acalyptrate flies, both sexes are dichoptic. Parasitic flies, or those that live in secluded places, may have very small eyes or none at......
dichotomous branching (plant anatomy)
Branching in angiosperms may be dichotomous or axillary. In dichotomous branching, the branches form as a result of an equal division of a terminal bud (i.e., a bud formed at the apex of a stem) into two equal branches that are not derived from axillary buds, although axillary buds are present elsewhere on the plant body. The few examples of dichotomous branching among angiosperms are found......
dichotomy (logic)
(from Greek dicha, “apart,” and tomos, “cutting”), a form of logical division consisting of the separation of a class into two subclasses, one of which has and the other has not a certain quality or attribute. Men thus may be divided into professional men and men who are not professionals; each of these may be subdivided similarly. On the principle of con...
dichroic mirror (optics)
...sensitive surface of each one. The optics consisted of a lens and four mirrors that reflected the image rays from the lens onto the three tubes. Two of the mirrors were of a colour-selective type (a dichroic mirror) that reflected the light of one colour and transmitted the remaining colours. The mirrors, augmented by colour filters that perfected their colour-selective action, directed a blue....
dichroism (optics)
...“more,” and chrōs, “colour”), in optics, the selective absorption in crystals of light vibrating in different planes. Pleochroism is the general term for both dichroism, which is found in uniaxial crystals (crystals with a single optic axis), and trichroism, found in biaxial crystals (two optic axes). It can be observed only in coloured, doubly refracti...
dichroite (mineral)
blue silicate mineral that occurs as crystals or grains in igneous rocks. It typically occurs in thermally altered clay-rich sediments surrounding igneous intrusions and in schists and paragneisses. Precambrian deposits of the Laramie Range, Wyo., U.S., contain more than 500,000 tons of cordierite. Cordierite is sometimes ca...
Dichromanassa rufescens (bird)
The reddish egret, Hydranassa (or Dichromanassa) rufescens, of warm coastal regions of North America, has two colour phases: white and dark. The snowy egret, E. (or Leucophoyx) thula, ranging from the United States to Chile and Argentina, is white, about 60 cm long, with filmy recurved plumes on the back and head....
dichromate mineral (mineral compound)
In the +6 oxidation state, the most important species formed by chromium are the chromate, CrO42-, and dichromate, Cr2O72-, ions. These ions form the basis for a series of industrially important salts. Among them are sodium chromate, Na2CrO4, and sodium dichromate, Na2Cr2O7, which are......
dichromatic vision
...discrimination apparatus is not as good as that of the majority of people, so that he sees many colours as identical that normal people would see as different. About one percent of males are dichromats; they can mix all the colours of the spectrum, as they see them, with only two primaries instead of three. Thus, the protanope (red blind) requires only blue and green to make his matches;......
Dichterleben (work by Tieck)
...polemics against both the younger Romantics and the contemporary “Young Germany” movement, which was attempting to establish a national German theatre based on democratic ideals. Dichterleben (“A Poet’s Life”; part 1, 1826; part 2, 1831) concerned the early life of Shakespeare. Vittoria Accorombona (1840; The Roman Matron) was a historical...
“Dichtung und Wahrheit” (autobiography by Goethe)
...spas of Carlsbad and Teplitz, Goethe composed and published the first three parts of his autobiography, Aus meinem Leben: Dichtung und Wahrheit (1811–13; From My Life: Poetry and Truth)....
dicing (technology)
Meats are cut into cubes or dices by a dicing machine. A common industrial-scale dicer uses a knife blade attached to a revolving impeller. With each revolution of the impeller, the blade removes a slice from the large pieces of meat that are fed to the machine. The meat slices are cut into squares using cross-cut knives. The diced product is then discharged from the machine....
Dick Cavett Show, The (American television show)
...the uncontested “King of Late-Night.” In the 1960s the other networks developed their own late-night shows—including The Joey Bishop Show (ABC, 1967–69), The Dick Cavett Show (ABC, 1968–75), and The Merv Griffin Show (CBS, 1969–72)—but none could compete with The Tonight Show. In 1973 NBC introd...
Dick, George Frederick (American physician)
American physician and pathologist who, with his wife, Gladys Henry Dick, discovered the cause of, and devised means of preventing, scarlet fever....
Dick, Gladys Henry (American pathologist)
American physician and pathologist who, with his wife, Gladys Henry Dick, discovered the cause of, and devised means of preventing, scarlet fever....
Dick, Mr. (fictional character)
fictional character in Charles Dickens’s novel David Copperfield (1849–50), a simpleminded but kind man who is a distant relative and treasured friend of David’s Aunt Betsey Trotwood. When Aunt Betsey is unable to decide whether to shelter the runaway David or to give him up to his cruel stepfather, Mr. Dick...
Dick, Philip K. (American author)
American science-fiction writer whose novels and short stories often depict the psychological struggles of characters trapped in illusory environments....
Dick, Philip Kindred (American author)
American science-fiction writer whose novels and short stories often depict the psychological struggles of characters trapped in illusory environments....
Dick Smith Electronics (Australian company)
...but his inventiveness and curiosity soon turned him into one of the signal success and survival stories in modern Australia. His remarkable entrepreneurial skills first appeared when he founded Dick Smith Electronics in 1968. By the time he sold the firm in 1982, Smith was a household name and his firm was a market leader in selling small electronic items, from calculators to computers.......
Dick Smith Foods (Australian company)
In 1999 he founded a new company, Dick Smith Foods, which distributed products made in Australia by Australian-owned companies and supported domestic charitable organizations. In December 2008 Smith and his wife donated $1 million (Australian) to Scouts Australia, asking that the money be used in part to encourage “responsible risk-taking” in young people....
Dick test (medicine)
method of determining susceptibility to scarlet fever by injection into the skin of 0.1 cubic centimetre of scarlet fever toxin. A reddening of the skin in an area over 10 millimetres (0.4 inch) in diameter within about 24 hours indicates a lack of immunity to the disease. The test was developed in 1924 by the U.S. physician...
Dick Tracy (comic strip character)
the hard-boiled hero of Dick Tracy, a newspaper comic strip created by Chester Gould in 1931. Gould originally wanted to name both the detective and the strip Plainclothes Tracy, but he was overruled by Joseph Medill Patterson, owner of The ...
Dick Tracy (cartoon strip)
...daily newspapers. In 1963 there were more than 300 different syndicated strips in the United States, but the number was down to 200 in 1975. Pogo and Dick Tracy reached more than 50 million readers in more than 500 newspapers. Superman comics circulated in the 1950s at the rate of 1.5 million monthly; in 1943 American comic books......
Dick Tracy (film by Beatty [1990])
...Bruce Joel Rubin for GhostAdapted Screenplay: Michael Blake for Dances with WolvesCinematography: Dean Semler for Dances with WolvesArt Direction: Richard Sylbert for Dick TracyOriginal Score: John Barry for Dances with WolvesOriginal Song: “Sooner or Later (I Always Get My Man)” from Dick Tracy; music and lyrics by Stephen......
Dick Van Dyke Show, The (American television program)
American television situation comedy that ran from 1961 to 1966 on the Columbia Broadcasting System (now CBS Corporation). Considered a pioneer in the genre, the show received 15 E...
Dick-Read, Grantly (British obstetrician)
...eliminated by physical and psychological conditioning. Until the early 20th century, the term natural childbirth was thought of as synonymous with normal childbirth. In 1933 the British obstetrician Grantly Dick-Read wrote a book entitled Natural Childbirth, in which he postulated that excessive pain in labour results from muscular tension arising from fear of the birth process; he......
dickcissel (bird)
American bird usually placed in the family Cardinalidae. The male dickcissel—named for its song—is a streaky brown bird 16 cm (6.5 inches) long, with a black bib on its yellow breast, looking somewhat like a miniature meadowlark. Dickcissels are seedeaters. They breed in weedy fields of the central United States and winter in northern South America; some stray to the Atlantic coast i...
Dicke, Robert H. (American physicist)
American physicist noted for his theoretical work in cosmology and investigations centring on the general theory of relativity. He also made a number of significant contributions to radar technology and to the field of atomic physics....
Dicke, Robert Henry (American physicist)
American physicist noted for his theoretical work in cosmology and investigations centring on the general theory of relativity. He also made a number of significant contributions to radar technology and to the field of atomic physics....
Dickens, Charles (British novelist)
English novelist, generally considered the greatest of the Victorian era. His many volumes include such works as A Christmas Carol, David Copperfield, Bleak House, A Tale of Two Cities, Great Expectations, and Our Mutual Friend....
Dickens, Charles John Huffam (British novelist)
English novelist, generally considered the greatest of the Victorian era. His many volumes include such works as A Christmas Carol, David Copperfield, Bleak House, A Tale of Two Cities, Great Expectations, and Our Mutual Friend....
Dickens, Monica (British writer)
English novelist, generally considered the greatest of the Victorian era. His many volumes include such works as A Christmas Carol, David Copperfield, Bleak House, A Tale of Two Cities, Great Expectations, and Our Mutual Friend.......
Dickerson, Carroll (American musician)
...his sister was also a pianist who led bands in the 1930s. After playing in trios during his high school years, Hines played in various bands throughout the Midwest. In 1925–26 he toured with Carroll Dickerson’s orchestra. When Louis Armstrong took over Dickerson’s band in 1927, Hines stayed on as pianist and musical director. He participated in several groundbreaking record...
Dickerson, Eric (American football player)
American professional gridiron football player who was one of the leading running backs in National Football League (NFL) history....
Dickerson, Eric Demetric (American football player)
American professional gridiron football player who was one of the leading running backs in National Football League (NFL) history....
Dickerson, Nancy (American journalist)
American journalist and author who was a pioneer in television reporting, serving as the first female news correspondent at CBS (1960) and producing award-winning documentaries; her autobiography, Among Those Present (1976), attributed part of her success to contacts she established as one of Washington, D.C.’s most popular party hostesses (b. Jan. 27, 1927--d. Oct. 18, 1997)....
Dickey, Bill (American baseball player)
professional baseball player who caught for the New York Yankees (1928–43 and 1946) of the American League. Dickey spanned two eras in Yankee history, playing at the end of Babe Ruth’s career and during the careers of legends Lou Gehrig and Joe DiMaggio. Dickey competed i...
Dickey, James (American poet)
American poet, novelist, and critic best known for his poetry combining themes of nature mysticism, religion, and history and for his novel Deliverance (1970)....
Dickey, James Lafayette (American poet)
American poet, novelist, and critic best known for his poetry combining themes of nature mysticism, religion, and history and for his novel Deliverance (1970)....
Dickey, Sarah Ann (American educator)
American educator who devoted her efforts in the post-Civil War United States to creating and enhancing educational opportunities for African-American students....
Dickey, William A. (American prospector)
...One”) and to the Russians as Bolshaya Gora (“Great Mountain”), it was called Densmore’s Mountain in 1889 by Frank Densmore, a prospector. The modern name was applied in 1896 by William A. Dickey, another prospector, in honour of William McKinley, who was elected president of the United States later that year. Efforts undertaken in the mid-1970s to restore the mountai...
Dickey, William Malcolm (American baseball player)
professional baseball player who caught for the New York Yankees (1928–43 and 1946) of the American League. Dickey spanned two eras in Yankee history, playing at the end of Babe Ruth’s career and during the careers of legends Lou Gehrig and Joe DiMaggio. Dickey competed i...