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rhizome ... Ribeiro Prto

rhizome: in botany, horizontal, underground plant stem capable of producing the shoot and root systems of a new plant. This capability allows the parent plant to propagate vegetatively (asexually) and also ...
rhizopod: any member of the protozoan superclass Rhizopoda. Three types of pseudopodia (cytoplasmic extensions) used in locomotion and digestion are found in members of this superclass: (1) long, thin reticulopodia, which ...
Rhode Island: island, largest in Narragansett Bay, eastern Rhode Island, U.S., occupying an area of 44 square miles (114 square km). Aquidneck is the Indian name for what was later called Rhode ...
Rhode Island: constituent state of the United States of America. It was one of the original 13 states and is one of the six New England states. With an area of 1,212 ...
Rhode Island School of Design: private, coeducational institution of higher learning in Providence, R.I., U.S. The school was founded in 1877 but did not offer its first instruction at the college level until 1932. It ...
Rhode Island, University of: public, coeducational institution of higher learning in Kingston, R.I., U.S. It is a land- and sea-grant institution. The university includes colleges of business administration, engineering, pharmacy, resource development, human science ...
Rhodes: major city of the island of Rhodes and capital of the nomos (department) of Dhodhekanisos (in the Dodecanese islands), Greece. The largest urban centre on the island, Rhodes sits on ...
Rhodes: island (nisos), the largest of the Dodecanese (q.v.) group, Greece, and the most easterly in the Aegean Sea, separated by the Strait of Marmara from Turkey. Rhodes city, on the ...
Rhodes scholarship: educational grant to the University of Oxford, established in 1902 by the will of Cecil Rhodes for the purpose of promoting unity among English-speaking nations. The scholarships are for two ...
Rhodes, Alexandre de: Jesuit missionary who was the first Frenchman to visit Vietnam.
Rhodes, Cecil: financier, statesman, and empire builder of British South Africa. He was prime minister of Cape Colony (1890-96) and organizer of the giant diamond-mining company De Beers Consolidated Mines, Ltd. (1888). ...
Rhodes, Colossus of: colossal statue of the sun god Helios that stood in the ancient Greek city of Rhodes and was one of the Seven Wonders of the World. The sculptor Chares of ...
Rhodes, James Ford: American businessman and historian, best known for his multivolume investigation of the antebellum, American Civil War, and Reconstruction periods of the United States' history.
Rhodes, Lawrence: American premier dancer and ballet director.
Rhodes, Wilfred: English cricketer who during his career (1898-1930) completed more doubles (1,000 runs and 100 wickets in a single season) than any other player. He appeared in 58 Test (international) matches ...
Rhodesia and Nyasaland, Federation of: political unit created in 1953 and ended on Dec. 31, 1963, that embraced the British settler-dominated colony of Southern Rhodesia (Zimbabwe) and the territories of Northern Rhodesia (Zambia) and Nyasaland ...
Rhodesian ridgeback: South African hound dog breed characterized by a narrow band of hair that grows forward along its back, against the direction of the rest of the coat. This ridge is ...
Rhodian Sea Law: body of regulations governing commercial trade and navigation in the Byzantine Empire beginning in the 7th century; it influenced the maritime law of the medieval Italian cities.
rhodium: (Rh), chemical element, one of the platinum metals of Group VIII of the periodic table, predominantly used as an alloying agent to harden platinum. Rhodium is a precious, silver-white metal, ...
rhodochrosite: (Greek: Rose Coloured), mineral composed of manganese carbonate (MnCO₃) that is a source of manganese for the ferromanganese alloys used in steel production. It is commonly found in ore veins ...
rhododendron: (Rhododendron), any of a genus of woody plants in the heath family (Ericaceae), notable for their attractive flowers and handsome foliage. The genus is large and extremely diverse, comprising about ...
rhodolite: pink or rose-red variety of pyrope (q.v.), a garnet mineral.
rhodonite: silicate mineral that occurs as rounded crystals, masses, or grains in various manganese ores, often with rhodochrosite. It is found in the Ural Mountains of Russia, where it is mined ...
Rhodope Mountains: mountain system in the Balkan Peninsula. The Rhodope Mountains lie mainly in Bulgaria, but also reach into Greece. The least accessible region in the Balkans, the system within Bulgaria has ...
Rhodophyta: division or phylum of algae the members of which are commonly known as red algae (q.v.).
rhodopsin: a chromoprotein (protein linked to a pigment-carrying substance) that is contained in the light-sensitive cells of the rod type in the retina of the eye; it functions in the eye's ...
rhodora: (Rhododendron canadense), deciduous shrub, of the heath family (Ericaceae), native to northeastern North America. It occurs most commonly in swampy regions, grows to about 90 centimetres (3 feet) in height, ...
Rhondda: community, Rhondda Cynon Taff county borough, historic county of Glamorgan (Morgannwg), Wales. Rhondda comprises two almost continuous belts of settlement along the valleys of the Rivers Rhondda Fawr ("Great") and ...
Rhondda Cynon Taff: county borough in southern Wales. It encompasses the northwest-southeast-trending upper valleys of the Rivers Ely, Rhondda, Taff, and Cynon and the wooded hills between them. These hills increase in elevation ...
Rhondda, David Alfred Thomas, 1st viscount, baron Rhondda of Llanwern: Welsh coal-mining entrepreneur, leading figure in industrial South Wales, and government official who introduced food rationing into Great Britain during World War I.
Rhone River: historic river of Switzerland and France and one of the most significant waterways of Europe. It is the only major river flowing directly to the Mediterranean Sea and is thoroughly ...
Rhone wine: any of numerous table wines, mostly red, from the Cotes du Rhone region of southeastern France. The vineyards are situated on either side of the Rhone River from south of ...
Rhone-Alpes: region of France encompassing the southeastern departements of Loire, Rhone, Ain, Haute-Savoie, Savoie, Isere, Drome, and Ardeche. Rhone-Alpes is bounded by the
Rhone-Poulenc SA: former French chemical manufacturer and leading producer of organic chemicals, synthetic fibres, and pharmaceuticals. It merged with Hoechst Aktiengesellschaft in 1999 to create the French-German pharmaceutical firm Aventis.
rhubarb: any of several species of the genus Rheum (family Polygonaceae), especially Rheum rhaponticum (or R. rhabarbarum), a hardy perennial grown for its large, succulent leafstalks, which are edible.
rhupunt: one of the 24 metres of the Welsh bardic tradition. A rhupunt is a verse composed of three, four, or five four-syllable sections linked by
Rhus: genus of about 150 species of shrubs, small trees, and vines, of the cashew family (Anacardiaceae), including the popular sumacs (see sumac). Authorities disagree over the inclusion of poison oak, ...
Rhyl: seaside town, Denbighshire (Sir Ddinbych) county, historic county of Flintshire (Sir Fflint), Wales, at the mouth of the River Clwyd. The town is predominantly a holiday resort, with extensive sandy ...
rhyme: the correspondence of two or more words with similar-sounding final syllables placed so as to echo one another. Rhyme is used by poets and occasionally by prose writers to produce ...
rhyme royal: seven-line iambic pentameter stanza rhyming ababbcc. The rhyme royal was first used in English verse in the 14th century by Geoffrey Chaucer in Troilus and Criseyde and The Parlement of ...
rhyme scheme: the formal arrangement of rhymes in a stanza or a poem. If it is one of a number of set rhyme patterns, it may be identified by the name of ...
rhyme-tag: a word or phrase used primarily to produce a rhyme. Rhyme-tags are used to comic effect in much light verse, as in W.S. Gilbert's "The Modern Major-Gineral," which reads in ...
Rhynchocephalia: reptilian order that arose in the Triassic and Jurassic periods (225,000,000 to 136,000,000 years ago) and survives today as the tuatara (q.v.) of New Zealand.
rhynchophthirinan: any member of the suborder Rhynchophthirina of the louse order Phthiraptera, consisting of the genus Haematomyzus with two species. Although its origins and relationships are uncertain, the suborder is considered ...
Rhynchotrema: extinct genus of brachiopods, or lamp shells, found as fossils in Middle and Late Ordovician rocks (the Ordovician Period lasted from 505 to 438 million years ago). The shell is ...
Rhynchotreta: extinct genus of brachiopods (lamp shells) commonly found as fossils in Silurian marine rocks (between 438 and 408 million years old). Its small, roughly triangular shell is prominently ornamented by ...
Rhynie plants: several genera of fossil plants uncovered near Rhynie, Aberdeen, Scot., of significance in tracing the evolution of vascular plants (plants with special cells that conduct water and food). The rocks ...
rhyolite: extrusive igneous rock that is the volcanic equivalent of granite. Most rhyolites are porphyritic, indicating that crystallization began prior to extrusion. Crystallization may sometimes have begun while the magma was ...
Rhys, Ernest Percival: English man of letters who, as editor of Everyman's Library, a series of inexpensive editions of world classics, influenced the literary taste of his own and succeeding generations.
Rhys, Jean: West Indian novelist who earned acclaim for her early works set in the bohemian world of Europe in the 1920s and '30s but who stopped writing for nearly three decades, ...
Rhys, Sion Dafydd: Welsh physician and grammarian whose grammar, Cambrobrytannicae Cymraecaeve linguae institutiones et rudimenta (1592), was the foundation of all later Welsh grammatical studies.
rhythm: in music, the placement of sounds in time. In its most general sense rhythm (Greek rhythmos, derived from rhein, "to flow") is an ordered alternation of contrasting elements. The notion ...
rhythm: in poetry, the patterned recurrence, within a certain range of regularity, of specific language features, usually features of sound. Although difficult to define, rhythm is readily discriminated by the ear ...
rhythm and blues: term used for several types of postwar African-American popular music, as well as for some white rock music derived from it. The term was coined by Jerry Wexler in 1947, ...
rhythmic gymnastics: the performance of systematic physical exercise with the aid of such hand apparatuses as ropes, hoops, balls, clubs, and ribbons. It is closely related to women's artistic gymnastics-a sport performed ...
rhythmic mode: rhythmic organization in triple patterns underlying all polyphonic (many-voiced) music of the late 12th and 13th centuries, beginning with the descant sections of two-part organa of the Notre-Dame school in ...
ria: funnel-shaped estuary that occurs at a river mouth and is formed by the submergence of the lower portion of the river valley. Generally occurring along a rugged coast perpendicular to ...
rial: monetary unit of Iran, Oman, and Yemen.
Rialto Bridge: crossing over the narrowest point of the Grand Canal in the heart of Venice, built in the closing years of the 16th century, renowned as an architectural and engineering achievement ...
Riau: provinsi ("province"), east-central Sumatra, Indonesia. It is bounded by the provinces of Jambi on the south, Sumatera Barat (West Sumatra) on the west, Sumatera Utara (North Sumatra) on the north ...
rib: any of several pairs of narrow, curved strips of bone (sometimes cartilage) attached dorsally to the vertebrae and, in higher vertebrates, to the breastbone ventrally, to form the bony skeleton, ...
Ribalta, Francisco: Spanish painter who was one of the first artists to be influenced by the new realism initiated by Caravaggio in Italy. Ribalta's use of light and shadow to give solidity ...
Ribas, Oscar: Angolan folklorist and novelist, who recorded in Portuguese the oral tradition of the Mbundu people of Angola.
Ribaut, Jean: French naval officer, explorer, and colonizer.
Ribbentrop, Joachim von: German diplomat, foreign minister under the Nazi regime (1933-45), and chief negotiator of the treaties with which Germany entered World War II.
Ribble Valley: borough (district), administrative county of Lancashire, northwestern England, along the county's eastern border, extending into the western Pennine uplands. The southern part of the borough, including the lower Ribble valley ...
Ribble, River: river in North Yorkshire and Lancashire, England, formed by the confluence of the Gayle and Cam becks (streams). The river first flows almost due south between Ingleborough Mountain (2,373 feet ...
Ribbon Fall: cataract on the west slope of the Sierra Nevada in Yosemite National Park, east-central California, U.S. With a drop of 1,612 feet (491 metres), it is one of the world's ...
ribbon seal: (Histriophoca fasciata), earless seal of the family Phocidae found in the North Pacific and the Bering Sea. The male, growing to about 1.7 m (5.6 feet) in length and 95 ...
ribbon worm: any member of the invertebrate phylum Nemertea (sometimes called Nemertinea, or Rhynchocoela), which includes mainly free-living forms but also a few parasites of crustaceans, mollusks, and sea squirts. The majority ...
ribbonfish: any of several species of deep-sea, marine fishes constituting the family Trachipteridae (order Lampridiformes). The family contains three genera: Trachipteras, Desmodema, and Zu. These slender-bodied fishes occur in all the ...
Ribbonism: Irish secret-society movement that began at the end of the 18th century in opposition to the Orange Society, or Protestant Orangemen. It was represented by various associations under different names, ...
Ribe: city, southwestern Jutland, Denmark, on the Ribe River, 4 miles (6 km) from the North Sea. One of Denmark's oldest towns, it was first mentioned in 862 and became a ...
Ribeauville: town, Haut-Rhin departement, Alsace region, in eastern France. It lies at the entrance of the valley of the Strengbach, under the Vosges Mountains, 33 miles (53 km) southwest of Strasbourg. ...
Ribeiro Couto, Rui: Brazilian poet, short-story writer, and diplomat, one of the leading figures of Modernism in its early years. Originally a symbolist poet, Ribeiro Couto evolved toward the Modernism that exploded upon ...
Ribeiro Prto: city, northeastern Sao Paulo state, southeastern Brazil. It is situated in a highlands region at an elevation of 1,700 feet (520 metres) above sea level, on the Preto River, a ...