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virology
(Encyclopedia)virology, study of viruses and their role in disease. Many viruses, such as animal RNA viruses and viruses that infect bacteria, or bacteriophages, have become useful laboratory tools in genetic studi...vein
(Encyclopedia) CE5 Cross section of vein showing valves vein, blood vessel that returns blood to the heart. Except for the pulmonary vein, which carries oxygenated blood from the lungs to the heart, veins carry ...writ
(Encyclopedia)writ, in law, written order issued in the name of the sovereign or the state in connection with a judicial or an administrative proceeding. Usually the writ requires the person to whom the command is ...West Nile virus
(Encyclopedia)West Nile virus, microorganism and the infection resulting from it, which typically produces no symptoms or a flulike condition. The virus is a flavivirus and is related to a number of viruses that ca...aircraft carrier
(Encyclopedia)aircraft carrier, ship designed to carry aircraft and to permit takeoff and landing of planes. The carrier's distinctive features are a upper deck (flight deck) that is flat and sometimes sloped to fu...plumbing
(Encyclopedia)plumbing, piping systems inside buildings for water supply and sewage. The Romans had a highly developed plumbing system; water was brought to Rome by aqueducts and distributed to homes in lead pipes...Costa e Silva, Artur da
(Encyclopedia)Costa e Silva, Artur da ərto͞orˈ dä koŏshˈtə ĕ sēlˈvə [key], 1902–69, president of Brazil (1967–69). An army general, he participated in the 1964 coup that deposed President João Goula...Galaţi
(Encyclopedia)Galaţi or Galatz both: gälätsˈ [key], city , E Romania, on the lower Danube. It is a ...Andreotti, Giulio
(Encyclopedia)Andreotti, Giulio jēo͞oˈlēō änˌdrāätē [key], 1919–2013, Italian political leader. A leading member of the Christian Democratic party, Andreotti held a variety of ministerial posts througho...Gusmão, Xanana
(Encyclopedia)Gusmão, Xanana), 1946–, East Timorese independence leader, b. Portuguese Timor as José Alexandre Gusmão, later known as Kay Rala Xanana Gusmão. He served in the Portuguese army (1968–71), then...Browse by Subject
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