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Mariana Trench
(Encyclopedia)Mariana Trench or Marianas Trench, mârˌēănˈəz [key], elongated depression on the Pacific Ocean floor, 210 mi (338 km) SW of Guam. It is the deepest known depression on the earth's surface, havin...Marianas
(Encyclopedia)Marianas: see Northern Mariana Islands and Guam. ...Mariana Trench Marine National Monument
(Encyclopedia)Mariana Trench Marine National Monument: see under Mariana Trench. ...trench
(Encyclopedia)trench: see ocean.trench fever
(Encyclopedia)trench fever: see rickettsia.trench mouth
(Encyclopedia)trench mouth, common term for Vincent's infection, an ulcerative membranous infection of the gums and mouth, by noncontagious infection, associated with a fusiform bacillus and a spirochete. Poor oral...trench warfare
(Encyclopedia)trench warfare. Although trenches were used in ancient and medieval warfare, in the American Civil War, and in the Russo-Japanese War (1904–5), they did not become important until World War I. The i...Trench, Richard Chenevix
(Encyclopedia)Trench, Richard Chenevix, 1807–86, Irish clergyman and author, b. Dublin. He was dean of Westminster, 1856–63, and Protestant archbishop of Dublin, 1863–84. His many theological writings were ec...Cameron, James
(Encyclopedia)Cameron, James, 1954–, Canadian motion-picture director and screenwriter, b. Kapuskasing, Ont. Beginning as a screenwriter and then art director, he first directed in 1981. His science-fiction block...Piccard, Auguste
(Encyclopedia)Piccard, Auguste ōgüstˈ pēkärˈ [key], 1884–1962, Swiss physicist, b. Basel. He became a professor at the Univ. of Brussels in 1922. He and his twin brother Jean Felix (d. 1963) are known for t...Browse by Subject
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