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sphalerite
(Encyclopedia)sphalerite sfălˈərīt, sfāˈ– [key], mineral composed of zinc sulfide, usually containing some iron and a little cadmium. It occurs in crystals of the isometric system but more generally in clea...Eocene epoch
(Encyclopedia)Eocene epoch ēˈəsēnˌ [key], second epoch of the Tertiary period in the Cenozoic era of geologic time, from approximately 54.9 to 38 million years ago. The Eocene in North America was marked by th...praseodymium
(Encyclopedia)praseodymium prāˌzēōdĭmˈēəm, –sēō– [key] [Gr., =green twin], metallic chemical element; symbol Pr; at. no. 59; at. wt. 140.90765; m.p. 931℃; b.p. 3,512℃; sp. gr. about 6.8; valence +...Fort Thomas
(Encyclopedia)Fort Thomas, city (2020 pop. 15,999), Campbell co., N Ky., on the Ohio River, a residential suburb S of Cincinnati, Ohio; inc. 1867. The city was named ...Howard
(Encyclopedia)Howard, English noble family. Landowners in Norfolk from the 13th cent., the Howards obtained the duchy of Norfolk through the marriage of Sir Robert Howard to Margaret Mowbray, daughter of Thomas Mow...Canterbury
(Encyclopedia)Canterbury, city and district, Kent, SE England, on the Stour River. Tourism, services, and retail are the city's main industries. There is also some li...Hudson River school
(Encyclopedia)Hudson River school, group of American landscape painters, working from 1825 to 1875. The 19th-century romantic movements of England, Germany, and France were introduced to the United States by such w...Kensington and Chelsea
(Encyclopedia)Kensington and Chelsea, inner borough (1991 pop. 127,600) of Greater London, SE England. Kensington is largely residential with fashionable shopping streets and several luxurious hotels. Portobello Ro...Kinsella, Thomas
(Encyclopedia) Kinsella, Thomas , 1928-2021, Irish poet and translator, b. Inchicore, Dublin. Kinsella studied at Dublin's University College and began working as a c...Thomas à Becket, Saint
(Encyclopedia)Thomas à Becket, Saint, or Saint Thomas Becket, 1118–70, English martyr, archbishop of Canterbury, b. London. He is called St. Thomas of Canterbury and occasionally St. Thomas of London. In exi...Browse by Subject
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