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rheotaxis ... Rhondda, David Alfred Thomas, 1st viscount, baron Rhondda of Llanwern
rheotaxis
(from the article "mechanoreception") ...as possible in contact with solid objects in the surroundings (thigmotaxis). Animals that live in ...
Rhesus Macaque Genome Sequencing and Analysis Consortium
(from the article "Life Sciences") Two independent teams of researchers reported on two major genome-sequencing studies. The Rhesus Macaque Genome ...
rhesus monkey
sand-coloured primate native to forests but also found coexisting with humans in northern India, Nepal, ... [8 Related Articles]
Rheticus, Georg Joachim
Austrian-born astronomer and mathematician who was among the first to adopt and spread the heliocentric ... [2 Related Articles]
rhetoric
the principles of training communicators-those seeking to persuade or inform; in the 20th century it ... [29 Related Articles]
rhetorical question
(from the article "speech, figure of") Other common forms of figurative speech are hyperbole (deliberate exaggeration for the sake of effect), ...
rhetoriqueur
any of the principal poets of the school that flourished in 15th- and early 16th-century ... [1 Related Articles]
Rhetra
(from the article "ancient Greek civilization") The Rhetra is an alleged response by the Delphic oracle to the lawgiver Lycurgus around ...
Rheum rhaponticum
(from the article "rhubarb") any of several species of the genus Rheum (family Polygonaceae), especially Rheum rhaponticum (or R. ...
rheumatic fever
inflammatory disease of the heart, joints, central nervous system, and subcutaneous tissues that develops after ... [7 Related Articles]
rheumatic heart disease
(from the article "cardiovascular disease") Rheumatic heart disease results from inflammation of the endocardium (heart lining), myocardium (heart muscle), and ...
rheumatism
any of several disorders that have in common inflammation of the connective tissues, especially the ... [1 Related Articles]
rheumatoid arthritis
chronic, frequently progressive disease in which inflammatory changes occur throughout the connective tissues of the ... [11 Related Articles]
rheumatoid factor
(from the article "diagnosis") ...antinuclear antibodies (antibodies that will bind to antigens within the nucleus) can be used to ...
Rhiannon
in Celtic religion, the Welsh manifestation of the Gaulish horse goddess Epona and the Irish ... [2 Related Articles]
Rhianus
Greek poet and scholar from Crete and a slave. His only surviving works are 10 ... [1 Related Articles]
Rhijn, Pieter J. van
(from the article "Milky Way Galaxy") ...refers to the absolute number of stars of different absolute magnitudes in the solar neighbourhood. ...
rhinarium
(from the article "primate") ...complexity of the nasal concha ("scroll" bones of the nose), the richness of the innervation ...
Rhinatrematidae
(from the article "Gymnophiona") ...2 genera, 37 species; adult size 40-50 cm (16-20 inches); Southeast Asia, peninsular India, Sri ...
Rhind papyrus
ancient Egyptian scroll bearing mathematical tables and problems. This extensive document from ancient Egypt has ... [4 Related Articles]
Rhine Falls
the most spectacular waterfall in central Europe, on the upper Rhine River just below Schaffhausen ... [1 Related Articles]
Rhine Rift Valley
(from the article "Germany") ...of restricted extent. The Black Forest (Schwarzwald) was once continuous with the Vosges massif in ...
Rhine River
river and waterway of western Europe, culturally and historically one of the great rivers of ... [20 Related Articles]
Rhine wine
(from the article "Rhineland") ...of Moselle and Bas-Rhin over the German Lander (states) of the Saarland and Rhineland-Palatinate and ...
Rhine, Army of the
(from the article "Sedan, Battle of") Mac-Mahon had intended to march his army, accompanied by Napoleon III, from Chalons-sur-Marne northeast toward ...
Rhine, Confederation of the
union (1806-13) of all the states of Germany, except Austria and Prussia, under the aegis ... [4 Related Articles]
Rhine, J. B.
(from the article "parapsychological phenomenon") ...slower to recognize psychical research as a serious subject for study. The activities of the ...
Rhine, League of the
(from the article "Boyneburg, Johann Christian, Freiherr von") ...marshal of the court of Mainz and prime minister if he would become a Roman ...
Rhine-Herne Canal
(from the article "Rhine River") In the Ruhr region the Ruhr itself (except for the last seven miles) and the ...
Rhine-Hesse Plateau
(from the article "Rhineland-Palatinate") ...the Saar-Nahe Mountains and the escarpments of the Pfalzer Forest (Pfalzerwald). Open cultivated areas alternate ...
Rhine-Rhone Canal
(from the article "canals and inland waterways") ...at Chalon and completed the first inland route from the English Channel to the Mediterranean; ...
Rhine-Weser Germanic language
(from the article "Germanic languages") ...250 BC they had spread south, and five general groups are distinguishable: North Germanic in ...
rhinegraves
wide breeches worn by men in the mid-17th century in Europe. The breeches were probably ... [1 Related Articles]
Rhineland
historically controversial area of western Europe lying in western Germany along both banks of the ... [13 Related Articles]
Rhineland Commission
(from the article "international relations") ...engineers and workers to revive the Rhine-Ruhr complex through the Inter-Allied Control Commission for Factories ...
Rhineland Pact
(from the article "international relations") ...signed five treaties (Oct. 16, 1925) designed to pacify postwar Europe. Locarno seemed truly a ...
Rhineland-Palatinate
Land (state) situated in southwestern Germany. It is bordered by the states ... [2 Related Articles]
Rhinelander
city, seat (1887) of Oneida county, northern Wisconsin, U.S. It lies at the confluence of ...
Rhinelander Logging Museum Complex
(from the article "Rhinelander") The Rhinelander Logging Museum Complex in Pioneer Park includes a replica of a lumber camp ...
Rhinelander, F. W.
(from the article "Rhinelander") ...a heavy concentration of lakes, and Nicolet National Forest lies to the east. The city, ...
rhinestone
colourless, faceted glass used in jewelry; also foil-backed or silvered cut glass used to imitate ...
rhinitis
(from the article "rhinitis") generic term for inflammation of the mucous tissue of the nose. Rhinitis may be allergic ...
rhinoceros
any of five species of ponderous, hoofed mammals, family Rhinocerotidae (order Perissodactyla), found in eastern ... [2 Related Articles]
rhinoceros beetle
(from the article "rhinoceros beetle") Some species, such as the Hercules beetle (Dynastes hercules), can grow to over 18 cm ...
rhinoceros beetle
any of numerous species of beetle, some of which are among the largest beetles on ...
rhinoceros viper
brightly coloured venomous snake of the family Viperidae that inhabits rainforests and swamps of West ...
Rhinolophidae
(from the article "bat") ...or in the open under bridges or eaves, in the crests of palm trees, or ...
Rhinomonas
(from the article "algae") ...approximately 200 described species; Chilomonas, Cryptomonas,
rhinoplasty
(from the article "plastic surgery") ...in vitro and synthetic compounds such as silicone are also used as a substitute for ...
rhinovirus
a group of viruses capable of causing common colds in human adults and children. They ... [3 Related Articles]
Rhins, The
(from the article "Galloway") The Rhins is a hammer-shaped peninsula in the extreme southwest of Wigtownshire. At the southern ...
Rhipidiales
(from the article "fungus") ...hyphae may grow within or between cells of plants, causing root rot; example genera include ...
Rhipidistia
extinct group of lobe-finned bony fishes of the order Crossopterygii that included the ancestors of ... [3 Related Articles]
rhipidoglossan radula
(from the article "gastropod") Evidently, the most primitive type of gastropod feeding involved browsing and grazing of algae from ...
Rhipsalis
cactus genus of about 50 species, family Cactaceae, native to tropical and subtropical America, West ...
Rhizanthes
(from the article "Rafflesiaceae") ...mostly in the Old World subtropics: Pilostyles (22 species), Bdallophytum (4 species), Apodanthes (5 species), ...
rhizine
(from the article "lichen") ...number of fungal cells (called the mycobionts). The heteromerous thallus differs in that it has ...
Rhizobium
(from the article "bacteria") ...can be used by living organisms. Some nitrogen-fixing bacteria, such as Azotobacter, Clostridium pasteurianum, and ...
Rhizocephala
(from the article "crustacean") ...distorted by outgrowths of the gut and ovary, giving a bushlike appearance; males dwarfed, living ...
rhizoid
(from the article "fungus") ...Brie and Camembert are matured by enzymes produced by the fungus Penicillium camemberti, which grows ...
rhizomastigote
any member of the flagellate protozoan order Rhizomastigida, with features similar to both flagellates and ...
rhizomatous begonia
(from the article "begonia") Rhizomatous begonias include the rex, or beefsteak, begonias (Rex-Cultorum group), including offshoots of B. rex ...
rhizome
in botany, horizontal, underground plant stem capable of producing the shoot and root systems of ... [12 Related Articles]
rhizomorph
(from the article "Signs of pathogen presence in diseased plants") Armillaria grow from a single fertilized white spore and spread vegetatively through hyphae, threadlike filaments ...
Rhizophoraceae
(from the article "Malpighiales") ...and is used as a flavouring for the soft drink Coca-Cola (a name that is ...
rhizophore
(from the article "lycophyte") ...of the soil, or large, flat, erect, frondlike side branches from strong rhizome systems. The ...
Rhizophydiales
(from the article "fungus") Mainly found in soil; examples of genera include Chytridium, Chytriomyces, and Nowakowskiella.Aquatic parasitic (on ...
rhizopod
any member of the protozoan superclass Rhizopoda. Three types of pseudopodia (cytoplasmic extensions) used in ... [2 Related Articles]
Rhizopus stolonifer
(from the article "plant disease") Relative humidity is very critical in fungal spore germination and the development of storage rots. ...
Rhizostomeae
(from the article "jellyfish") The order Rhizostomeae includes some 80 described species. In these jellyfish the frilly projections (oral ...
Rho (D) immune globulin
(from the article "therapeutics") ...of the fetus, often leading to severe hemolytic anemia and brain damage, heart failure, or ...
Rho-GAM
(from the article "infectious disease") Rho-GAM is a human anti-RhD immune serum globulin used in the prevention of Rh hemolytic ...
Rhodanic Republic
(from the article "Valais") ...during the Reformation were unsuccessful. The prince-bishops retained their power until the revolution of 1798, ...
Rhode Island
constituent state of the United States of America. It was one of the original 13 ... [13 Related Articles]
Rhode Island
island, largest in Narragansett Bay, eastern Rhode Island, U.S., occupying an area of 44 square ... [4 Related Articles]
Rhode Island Red
(from the article "Selected breeds of poultry") An American breed, the Rhode Island Red, developed in 1857 from Red Malay game fowl ...
Rhode Island School of Design
private, coeducational institution of higher learning in Providence, R.I., U.S. The school was founded in ... [2 Related Articles]
Rhode Island, Battle of
(from the article "Rhode Island") ...army burned nearly 500 buildings for firewood. In 1778 a combined Franco-American operation (the first ...
Rhode Island, flag of
U.S. state flag consisting of a white field (background) featuring the state coat of arms-a ...
Rhode Island, University of
public, coeducational institution of higher learning in Kingston, R.I., U.S. It is a land- and ... [3 Related Articles]
Rhodes
island (nisos), the largest of the Dodecanese (q.v.) group, Greece, and the most easterly in ... [11 Related Articles]
Rhodes
major city of the island of Rhodes and capital of the nomos (department) of Dhodhekanisos ... [3 Related Articles]
Rhodes grass
(from the article "Chloris") ...with feathery spikelets. Windmill grass (C. truncata) of Australia and tumble windmill grass (C. verticillata) ...
Rhodes Matopos National Park
(from the article "Matopo Hills") The Rhodes Matopos National Park was founded in 1902 as an estate with pastoral and ...
Rhodes scholarship
educational grant to the University of Oxford, established in 1902 by the will of Cecil ... [1 Related Articles]
Rhodes University
(from the article "Selected universities and colleges of the world") ...most blacks with postsecondary degrees earned them through UNISA or Fort Hare, but the English-language ...
Rhodes, Alexandre de
Jesuit missionary who was the first Frenchman to visit Vietnam. [4 Related Articles]
Rhodes, Cecil
financier, statesman, and empire builder of British South Africa. He was prime minister of Cape ... [13 Related Articles]
Rhodes, Colin
(from the article "Outsider Art: Moving in from the Margins") One of the most talked-about exhibitions of 2007 showcased the work of Mexican-born Martin Ramirez ...
Rhodes, Colossus of
colossal statue of the sun god Helios that stood in the ancient Greek city of ... [3 Related Articles]
Rhodes, Eugene Manlove
(from the article "western") ...of the genre have been written by men who actually worked as cowboys; one of ...
Rhodes, James Allen
American politician (b. Sept. 13, 1909, Coalton, Ohio-d. March 4, 2001, Columbus, Ohio), was Ohio's ...
Rhodes, James Ford
American businessman and historian, best known for his multivolume investigation of the antebellum, American Civil ...
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 ...
Rhodes-Livingstone Institute
(from the article "Wilson, Godfrey") In 1938 Wilson was appointed the first director of the Rhodes-Livingstone Institute in Northern Rhodesia ...
Rhodesia and Nyasaland, Federation of
political unit created in 1953 and ended on Dec. 31, 1963, that embraced the British ... [4 Related Articles]
Rhodesian Front
(from the article "Smith, Ian") ...1958 Smith had become chief government whip in Parliament, but when the Federalists supported a ...
Rhodesian ridgeback
South African hound dog breed characterized by a narrow band of hair that grows forward ...
Rhodesian teak
(from the article "Zambezi River") ...of the genus Baikiaea, found extensively on sandy interfluves between drainage channels, is economically the ...
Rhodian Sea Law
body of regulations governing commercial trade and navigation in the Byzantine Empire beginning in the ... [4 Related Articles]
Rhodian ware
(from the article "Islamic arts") ...and development of this type of ceramic decoration is intimately tied to the complex and ...
rhodium
(Rh), chemical element, one of the platinum metals of Group VIIIb of the periodic table, ... [6 Related Articles]
Rhodnius
(from the article "excretion") The activity of the excretory system in insects is under hormonal control. This has been ...
Rhodnius prolixis
(from the article "Wigglesworth, Sir Vincent") Among Wigglesworth's most significant discoveries were those concerned with metamorphosis, particularly the control of form ...
Rhodobacter
(from the article "bacteria") ...use sulfide or elemental sulfur as electron donors (Chromatium); purple nonsulfur bacteria, ...
rhodochrosite
(Greek: Rose Coloured), mineral composed of manganese carbonate (MnCO3) that is a source of manganese ...
rhododendron
any of a genus of woody plants in the heath family (Ericaceae), notable for their ... [3 Related Articles]
rhodolite
(from the article "rhodolite") pink or rose-red variety of pyrope (q.v.), a garnet mineral.for more general content related to ...
rhodonite
silicate mineral that occurs as rounded crystals, masses, or grains in various manganese ores, often ...
Rhodope
(from the article "Greece, history of") At the beginning of the 4th century the regions comprising very approximately the modern state ...
Rhodope Mountains
mountain system in the Balkan Peninsula. The Rhodope Mountains lie mainly in Bulgaria but also ... [3 Related Articles]
Rhodophyta
(from the article "Rhodophyta") division of algae known as red algae (q.v.).
rhodopsin
a chromoprotein (protein linked to a pigment-carrying substance) that is contained in the light-sensitive cells ... [13 Related Articles]
rhodora
(Rhododendron canadense), deciduous shrub, of the heath family (Ericaceae), native to northeastern North America. It ...
Rhodri Mawr
(from the article "Carmarthenshire") ...the high ground. During the post-Roman centuries the Celtic saints reflected the Christian faith of ...
Rhodymenia
(from the article "algae") ...species; Bangia, Palmaria, Polysiphonia,
Rhoeo
(from the article "Anius") in Greek mythology, the son of the god Apollo and of Rhoeo, who was herself ...
Rhoipteleaceae
(from the article "Fagales") Rhoipteleaceae contains one genus with one species, Rhoiptelea chiliantha (horsetail tree), which is restricted to ...
Rhombifera
(from the article "echinoderm") ...Ordovician about 460,000,000-500,000,000 years ago; resemble Blastoidea but differ in structure of ambulacra and in ...
rhombogen phase
(from the article "mesozoan") ...agametes) give rise to wormlike individuals similar to their parents. These remain in the same ...
rhombos
(from the article "bull-roarer") Known as the rhombos, the device was used in the ancient Greek ...
Rhombozoa
(from the article "mesozoan") any of approximately 50 species of small, ciliated, multicellular animals that parasitize other marine invertebrates ...
Rhondda
community, Rhondda Cynon Taff county borough, historic county of Glamorgan (Morgannwg), Wales. Rhondda comprises two ... [1 Related Articles]
Rhondda Cynon Taff
county borough in southern Wales. It encompasses the northwest-southeast-trending upper valleys of the Rivers Ely, ...
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 ...
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