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glacial periods
(Encyclopedia) glacial periods, times during which large portions of the earth's surface were covered with thick glacial ice sheets. In the Pleistocene epoch, in the Carboniferous and Permian periods…Jay, John
(Encyclopedia) Jay, John, 1745–1829, American statesman, 1st chief justice of the United States, b. New York City, grad. King's College (now Columbia Univ.), 1764. He was admitted (1768) to the bar…impotence
(Encyclopedia) impotenceimpotenceimˈpətəns [key], inhibited sexual excitement in a man during sexual activity that, despite an unaffected desire for sex, results in inability to attain or maintain a…jellyfish
(Encyclopedia) jellyfish, common name for the free-swimming stage (see polyp and medusa), of certain invertebrate animals of the phylum Cnidaria (the coelenterates). The body of a jellyfish is shaped…mercury poisoning
(Encyclopedia) mercury poisoning, tissue damage resulting from exposure to more than trace amounts of the element mercury or its compounds. Elemental mercury (the silver liquid familiar from…fold
(Encyclopedia) fold, in geology, bent or deformed arrangement of stratified rocks. These rocks may be of sedimentary or volcanic origin. Although stratified rocks are normally deposited on the earth'…Whittier, John Greenleaf
(Encyclopedia) Whittier, John GreenleafWhittier, John Greenleafhwĭtˈēər [key], 1807–92, American Quaker poet and reformer, b. near Haverhill, Mass. Whittier was a pioneer in regional literature as…Prohibition party
(Encyclopedia) Prohibition party, in U.S. history, minor political party formed (1869) for the legislative prohibition of the manufacture, transportation, and sale of alcoholic beverages. The…Childers, Robert Erskine
(Encyclopedia) Childers, Robert ErskineChilders, Robert Erskinechĭlˈdərz [key], 1870–1922, Irish politician and author. Born into a Protestant family, he was a clerk in the House of Commons (1895–…Gaster, Moses
(Encyclopedia) Gaster, MosesGaster, Mosesgäsˈtər [key], 1856–1939, Romanian Jewish scholar and writer, b. Bucharest. Expelled (1885) from Romania for championing the Jewish cause, he went to England…Trending
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