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Zacatecas, state, Mexico
(Encyclopedia)Zacatecas säkätāˈkäs [key], state (1990 pop. 1,276,329), 28,125 sq mi (72,844 sq km), N central Mexico. Zacatecas is the capital. Lying on the central plateau, Zacatecas is a state of semiarid pl...Trabzon
(Encyclopedia)Trabzon trĕbˈĭzŏndˌ [key], city (1990 pop. 144,805), capital of Trabzon prov., NE Turkey, a port on the Black Sea. A commercial and transportation center with renovated port facilities, it export...trapping
(Encyclopedia)trapping, most broadly, the use of mechanical or deceptive devices to capture, kill, or injure animals. It may be applied to the practice of using birdlime to capture birds, lobster pots to trap lobst...World Health Organization
(Encyclopedia)World Health Organization (WHO), specialized agency of the United Nations, established in 1948, with its headquarters at Geneva. WHO admits all sovereign states (including those not belonging to the U...adolescence
(Encyclopedia)adolescence, time of life from onset of puberty to full adulthood. The exact period of adolescence, which varies from person to person, falls approximately between the ages 12 and 20 and encompasses b...synthetic elements
(Encyclopedia)synthetic elements, in chemistry, radioactive elements that were not discovered occurring in nature but as artificially produced isotopes. They are technetium (at. no. 43), which was the first element...Motlanthe, Kgalema Petrus
(Encyclopedia)Motlanthe, Kgalema Petrus kälāˈmä, mōtlänˈtā [key], 1949–, South African politician, b. Johannesburg. A fierce opponent of apartheid, he was influenced by Steve Biko and organized student pr...niobium
(Encyclopedia)niobium nīōˈbēəm [key], metallic chemical element; symbol Nb; at. no. 41; at. wt. 92.90638; m.p. about 2,468℃; b.p. 4,742℃; sp. gr. 8.57 at 20℃; valence +2, +3, +4, or +5. Niobium is a rare...Dewey, George
(Encyclopedia)Dewey, George do͞oˈē, dyo͞oˈ– [key], 1837–1917, American admiral, hero of the battle of Manila, b. Montpelier, Vt., grad. Annapolis, 1858. He saw active duty in the Civil War and rose in the ...diphtheria
(Encyclopedia)diphtheria dĭfthērˈēə [key], acute contagious disease caused by Corynebacterium diphtheriae (Klebs-Loffler bacillus) bacteria that have been infected by a bacteriophage. It begins as a soreness o...Browse by Subject
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