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Tree, Sir Herbert Beerbohm ... trichomonad

Tree, Sir Herbert Beerbohm: one of the great figures of the English theatre, who became the most successful actor-manager of his time. His half brother, Max Beerbohm, received recognition as a writer and caricaturist. ...
Treece, Henry: English poet and historical novelist whose ability to bring the ancient world to life in fiction makes his work especially appealing to young readers. As a poet he-together with J.F. ...
treecreeper: any of a dozen species of small slender birds, with downcurved bills, that spiral up tree trunks in search of insects. They are variously classified in the families Certhiidae and ...
treehopper: any member of the approximately 2,600 species of insects of the family Membracidae (order Homoptera), sometimes called insect brownies because of their elflike appearance. They are easily recognized by their ...
Treich-Laplene, Marcel: French explorer whose difficult voyage into the interior of western Africa established the eastern boundary of the Cote d'Ivoire (Ivory Coast).
Treinta y Tres: city, east-central Uruguay, near the Olimar Grande River. It is the commercial and manufacturing centre for an agricultural and pastoral hinterland. Cattle and sheep are raised widely; wheat, corn (maize), ...
Treitschke, Heinrich von: German historian and political writer whose advocacy of power politics was influential at home and contributed to distrust of Germany abroad.
Trelawny, Edward John: English author and adventurer, the friend of Percy Bysshe Shelley and Lord Byron, whom he portrayed brilliantly in his books.
Trelleborg: town and port, Skane lan (county), southern Sweden, on the Baltic Sea. During the Middle Ages it was an important herring-fishing and commercial centre, but it declined after the herring ...
trellis: framework on which trees and climbing plants are trained. It is usually constructed of long, narrow wood or metal slats that are crisscrossed to produce square or diamond-shaped spaces.
Tremadoc Series: all those rocks deposited worldwide during the Tremadocian Age (505 to 488 million years ago). The Tremadoc is the lowest of the six divisions comprising the Ordovician System, and its ...
Tremain, Rose: British novelist whose books often dramatize a moment of truth in the lives of lonely outsiders.
Trembley, Abraham: Swiss naturalist, best known for his studies of the freshwater hydra, mainly Chlorohydra viridissima. His extensive systematic experiments foreshadowed modern research on tissue regeneration and grafting.
trench fever: infectious disease characterized by sudden onset with fever; headache; sore muscles, bones, and joints; and outbreaks of skin lesions on the chest and back. It is transmitted from one person ...
trench warfare: warfare in which opposing armed forces attack, counterattack, and defend from relatively permanent systems of trenches dug into the ground. The opposing systems of trenches are usually close to one ...
Trenchard, Hugh Montague Trenchard, 1st Viscount, Baron Trenchard of Wolfeton: British officer and air marshal who helped lay the foundations of the Royal Air Force (RAF).
trencher: originally a thick slice of bread, used as a primitive form of plate for eating and for slicing meat (hence its derivation from "trancher"-to cut, or carve), but by the ...
trenching machine: excavation machine employing a wheel fitted with rim buckets, or with a boom or ladder on which an endless chain of buckets or scrapers revolves. The machine is self-propelled on ...
Trendelenburg, Friedrich Adolf: German philologist, educator, prolific writer, and controversial philosopher who is remembered for his criticisms based on the thought of Aristotle and aimed against adherents of Immanuel Kant and G.W.F. Hegel.
Trent Affair: (1861), incident during the American Civil War involving the doctrine of freedom of the seas, which nearly precipitated war between Great Britain and the United States. On Nov. 8, 1861, ...
Trent Canal: canal, southeastern Ontario, Canada, linking Georgian Bay of Lake Huron with Lake Ontario. It extends from the southeastern shore of Georgian Bay near Port Severn, up the Severn River to ...
Trent, Council of: 19th ecumenical council of the Roman Catholic church (1545-63), highly important for its sweeping decrees on self-reform and for its dogmatic definitions that clarified virtually every doctrine contested by the ...
Trent, River: river in the English Midlands. It rises in the county of Staffordshire and, after flowing southeastward, northeastward, and then northward for 168 miles (270 km), enters the Humber estuary 40 ...
Trente et Quarante: ("Red and Black"), French card game played at Monte- Carlo and French and Italian gambling casinos. It is not popular in North America. The name Trente et Quarante is derived ...
Trentino-Alto Adige: autonomous frontier regione, northern Italy, comprising the provincie of Bolzano-Bozen (north) and Trento (south). Historically, the region includes the area of the medieval ecclesiastical principalities of Trento (Trent) and Bressanone ...
Trento: city, capital of Trento provincia, Trentino-Alto Adige regione, northern Italy. It lies along the Adige River near the mouth of the Brenta River, south of Bolzano. Trento was founded, according ...
Trenton: city, southwestern suburb of Detroit, Wayne county, southeastern Michigan, U.S. It lies along the Detroit River, opposite Grosse Ile. The site of the Battle of Monguagon during the War of ...
Trenton: city and capital of New Jersey, U.S., seat (1837) of Mercer county, and industrial metropolis at the head of navigation on the Delaware River. It lies 28 miles (45 km) ...
Trenton: former city, Hastings county, southeastern Ontario, Canada, since 1998 incorporated into the city of Quinte West. It is a port of entry on the Bay of Quinte, on the northern ...
Trenton and Princeton, battles of: (1776-77), in the American Revolution, battles notable as the first successes won by the Revolutionary general George Washington in the open field. After the capture of Fort Washington on Manhattan ...
Trentonian Stage: division of Middle Ordovician time in North America (the Ordovician Period began about 500,000,000 years ago and lasted about 70,000,000 years); the Trentonian Stage is the uppermost stage of the ...
Trepospira: extinct genus of gastropods (snails) found as fossils in rocks of Devonian to Late Carboniferous age (between 286 and 408 million years old). Its shell has a low spire, and ...
Trepostomata: extinct order of bryozoans (moss animals) found as fossils in marine rocks of Ordovician to Triassic age (208 to 505 million years old). The trepostomes are characterized by colonies in ...
Tres de Febrero: partido (district), central Gran (Greater) Buenos Aires, eastern Argentina, immediately west of the city of Buenos Aires, in Buenos Aires province. The district is named for the Battle of Caseros ...
Tresaguet, Pierre-Marie-Jerome: French engineer known for his introduction of modern road-building ideas.
Tresor de la langue francaise: etymological and historical dictionary of the French language, a comprehensive, large-scale work still in progress; its first six volumes were published in Paris in 1974-78. Volume 3 is evidence of ...
trespass: in law, the unauthorized entry upon land. Initially, trespass was wrongful conduct directly causing injury or loss and thus was the origin of the law of torts in common-law countries. ...
Tretiak, Vladislav: Soviet ice hockey player who was considered one of the greatest goaltenders in the history of the sport. As a member of the Central Red Army team and Soviet national ...
Tretyakov Gallery: Moscow art museum founded by Pavel M. Tretyakov in 1856. It contains the world's finest collection of 17th- and 18th-century Russian icons, having more than 40,000 of them.
Trevelyan, G M: English historian whose work, written for the general reader as much as for the history student, shows an appreciation of the Whig tradition in English thought and reflects a keen ...
Trevelyan, Julian: British artist who was a founding member of the British Surrealist group in the 1930s. He often infused his work with a sense of humour and fantasy.
Trevelyan, Sir George Otto, 2nd Baronet: English historian and statesman remembered for his biography of his uncle Lord Macaulay and for his part in the political events surrounding Prime Minister William Gladstone's introduction of Irish Home ...
Trevino, Lee: American professional golfer who became an immediate success when he joined the Professional Golfers' Association of America (PGA) tour in 1967 and soon was recognized as one of the finest ...
Treviso: city, capital of Treviso provincia, Veneto regione, northeastern Italy, situated north of Venice in a fertile plain at the confluence of the Sile and Botteniga rivers and intersected by canals. ...
Trevithick, Richard: English mechanical engineer and inventor who successfully harnessed high-pressure steam and constructed the world's first steam railway locomotive (1803). In 1805 he adapted his high-pressure engine to driving an iron-rolling ...
Trevor, William: Irish writer who is noted for his wry and often macabre short stories and novels, especially for the novel The Old Boys (1964), the story of an "old boys" committee, ...
Trevor-Roper, Hugh, Baron Dacre of Glanton: British historian and scholar noted for his works on aspects of World War II and on Elizabethan history. He is probably best known as a historian of Adolf Hitler.
trevorite: the mineral nickel iron oxide, a member of the magnetite (q.v.) series of spinels.
triad: in chemistry, any of several sets of three chemically similar elements, the atomic weight of one of which is approximately equal to the mean of the atomic weights of the ...
triad: in music, a chord of three tones, consisting of a root with its third and fifth and constituting the harmonic basis of tonal music. See chord.
triangle: percussion instrument consisting of a steel rod bent into a triangle with one corner left open. It is suspended by a gut or nylon loop and struck with a steel ...
Triangle Shirtwaist Company fire: fatal conflagration that occurred on March 25, 1911, in a New York City sweatshop, touching off a national movement in the United States for safer working conditions.
triangulation: in navigation, surveying, and civil engineering, a technique for precise determination of a ship's or aircraft's position, and the direction of roads, tunnels, or other structures under construction. It is ...
Trianon, Treaty of: (1920), treaty concluding World War I and signed by representatives of Hungary on one side and the Allied Powers on the other. It was signed on June 4, 1920, at ...
Triassic Period: in geologic time, the first period of the Mesozoic Era. It began about 248 million years ago, at the close of the Permian Period, and ended approximately 206 million years ...
triathlon: an endurance contest involving swimming, cycling, and running. The sport evolved out of a 1970s American craze for long-distance running and fitness and was introduced as an Olympic sport at ...
Triballi: a Thracian people whose earliest-known home was the "Triballian plain" (probably the Plain of Kosovo), near the junction of the Angrus and Brongus rivers (the western and southern Morava) in ...
tribe: in cultural anthropology, theoretical type of human social organization based on small groups defined by traditions of common descent and having temporary or permanent political integration above the family level ...
tribe: in Roman history, a unit of the Roman state. The first Roman tribes were probably ethnic in origin and consisted of the Titienses (Tities), Ramnenses (Ramnes), and Luceres. They were ...
Triberg: city, Baden-Wurttemberg Land (state), southwestern Germany. It lies along the Gutach River, northeast of Freiburg im Breisgau. Situated in a gorgelike valley among tall pinewoods near Triberg Falls, the highest ...
tribological ceramics: ceramic materials that are resistant to friction and wear. They are employed in a variety of industrial and domestic applications, including mineral processing and metallurgy. This article surveys the principal ...
tribology: the study of the interaction of sliding surfaces. It includes three subjects: friction, wear, and lubrication (qq.v.). There is a difficulty in that friction is generally characterized as a branch ...
Tribonian: legal authority and public official in the Byzantine Empire (eastern Roman Empire), who was the chief compiler and perhaps the initiator of the Code of Justinian, the comprehensive codification of ...
tribune: any of various military and civil officials in ancient Rome.
tributyl phosphate: an organic liquid solvent used in the extraction of uranium and plutonium salts from reactor effluents, as a solvent for nitrocellulose and cellulose acetate, and as a heat-exchange medium. A ...
tricarboxylic acid cycle: the second stage of cellular respiration, the three-stage process by which living cells break down organic fuel molecules in the presence of oxygen to harvest the energy they need to ...
tricellular theory: obsolescent model of the Earth's wind systems that represents them as three parallel wind cells or belts in each hemisphere. First advanced by T. Bergeron (1928) and further developed by ...
triceps muscle: any muscle with three heads, or points of origin, particularly the large extensor along the back of the upper arm in humans. It originates just below the socket of the ...
Triceratops: large plant-eating dinosaur characterized by a great bony head frill and three horns. Its fossils date to only the last 5 million years of the Late Cretaceous Period (99 million ...
trichina: (species Trichinella spiralis), parasitic worm of the class Nematoda (phylum Aschelminthes) that causes trichinosis (q.v.), a serious disease in humans and other mammals-e.g., pigs, cats, dogs, bears, foxes, and rats. ...
trichinosis: disorder resulting from infestation with the small roundworm Trichinella spiralis, commonly acquired by humans by the eating of undercooked pork containing encapsulated larvae of the parasite.
trichloroethane: either of two isomeric colourless, nonflammable liquids belonging to the family of organic halogen compounds.
trichloroethylene: a colourless, somewhat toxic, volatile liquid belonging to the family of organic halogen compounds, nonflammable under ordinary conditions and used as a solvent in dry cleaning, in degreasing of metal ...
trichocyst: a structure in the cortex of certain ciliate and flagellate protozoans consisting of a cavity and long, thin threads that can be ejected in response to certain stimuli. Trichocysts may ...
trichogrammatid: any of the tiny parasitic chalcid insects of the family Trichogrammatidae (order Hymenoptera), particularly those of the genus Trichogramma. Adults of Trichogramma species are less than one millimetre long, with ...
trichomonad: any protozoan of the zooflagellate order Trichomonadida. Trichomonads have three to six flagella, and one commonly trails or borders an undulating membrane. Most trichomonads inhabit the digestive systems of animals. ...