Columbia Encyclopedia

Search results

332 results found

thrombosis

(Encyclopedia)thrombosis thrŏmbōˈsĭs [key], obstruction of an artery or vein by a blood clot (thrombus). Arterial thrombosis is generally more serious because the supply of oxygen and nutrition to an area of th...

toxic shock syndrome

(Encyclopedia)toxic shock syndrome (TSS). acute, sometimes fatal, disease characterized by high fever, nausea, diarrhea, lethargy, blotchy rash, and sudden drop in blood pressure. It is caused by Staphylococcus aur...

Reni, Guido

(Encyclopedia)Reni, Guido gwēˈdō rĕˈnē [key], 1575–1642, Italian painter and engraver, b. Bologna. As a child he entered the studio of the Flemish painter Denis Calvaert. He was for a short time (c.1595) a ...

Reuter, Fritz

(Encyclopedia)Reuter, Fritz (Heinrich Ludwig Christian Friedrich Reuter) , hīnˈrĭkh lo͞otˈvĭkh krĭsˈtyän frēˈdrĭkh [key], 1810–74, German writer. His tales of Mecklenburg life are among the best of Ge...

Reye's syndrome

(Encyclopedia)Reye's syndrome rīz [key], rare but life-threatening disease characterized by acute encephalopathy and fatty infiltration of internal organs, especially the liver. It occurs almost entirely in childr...

Rift Valley fever

(Encyclopedia)Rift Valley fever, acute viral disease that affects domestic livestock and can be transmitted to humans. The disease is most common in E and S Africa, but also occurs widely in sub-Saharan Africa and ...

rinderpest

(Encyclopedia)rinderpest or cattle plague, an acute and highly infectious viral disease of cattle. It less frequently affects other ruminants, such as sheep, goats, and wild game. After an incubation period of thre...

Roberts, Owen Josephus

(Encyclopedia)Roberts, Owen Josephus, 1875–1955, associate justice of the U.S. Supreme Court (1930–45), b. Philadelphia. After receiving (1898) his law degree from the Univ. of Pennsylvania, he practiced law in...

Romania

(Encyclopedia)CE5 Romania ro͞o– [key], republic (2015 est. pop. 19,877,000), 91,699 sq mi (237,500 sq km), SE Europe. It borders on Hungary in the northwest, on Serbia in the southwest, on Bulgaria in the sou...

Browse by Subject