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Lisbon

(Encyclopedia)Lisbon lĭzˈbən [key], Port. Lisboa, ancient Olisipo, city (1991 pop. 677,790), W Portugal, capital of Portugal and of Lisboa dist., on the Tagus River where it broadens to enter the Atlantic Ocean....

Lismore, island, Scotland

(Encyclopedia)Lismore lĭzˈmôr, lĭzmôrˈ [key], island, 91⁄2 mi (15.3 km) long and 11⁄2 mi (2.4 km) wide, Argyll and Bute, W Scotland, in Loch Linnhe. There are ruins of several old castles, one of which wa...

Arrhenius, Svante August

(Encyclopedia)Arrhenius, Svante August sfänˈtə, ärāˈnēəs [key], 1859–1927, Swedish chemist. He was a professor of physics in Stockholm in 1895 and became director of the Nobel Institute for Physical Chemi...

List, Benjamin

(Encyclopedia)List, Benjamin, 1968–, b. Frankfurt, Germany. German chemist, Managing Director of the Max Planck Institute for Coal Research and Professor of organic...

arrhythmia

(Encyclopedia)arrhythmia ārĭᵺˈmēə [key], disturbance in the rate or rhythm of the heartbeat. Various arrhythmias can be symptoms of serious heart disorders; however, they are usually of no medical significan...

liver

(Encyclopedia)liver, largest glandular organ of the body, weighing about 3 lb (1.36 kg). It is reddish brown in color and is divided into four lobes of unequal size and shape. The liver lies on the right side of th...

livermorium

(Encyclopedia)livermorium, artificially produced radioactive chemical element; symbol Lv; at. no. 116; mass number of most stable isotope 292; m.p., b.p., sp. gr., and valence unknown. Situated in Group 16 of the p...

Livni, Tzipi

(Encyclopedia)Livni, Tzipi (Tziporah Malkah Livni) tsĭpˈpē lĭvˈnē [key], 1958–, Israeli politican, b. Tel Aviv. The daughter of Polish immigrants, both members of the violent Irgun militia, Livni served in ...

Lloyd, Seton Howard Frederick

(Encyclopedia)Lloyd, Seton Howard Frederick, 1902–96, English archaeologist. Trained originally as an architect, he gained his first archaeological experience in 1928 as a member of the Egypt Exploration Society'...

arsenic

(Encyclopedia)arsenic ärˈsənĭk [key], a semimetallic chemical element; symbol As; at. no. 33; at. wt. 74.92160; m.p. 817℃ (at 28 atmospheres pressure); sublimation point 613℃; sp. gr. (stable form) 5.73; va...