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Giacconi, Riccardo

(Encyclopedia)Giacconi, Riccardo, 1931–2018, Italian-American astrophysicist, b. Milan, Italy, Ph.D. Univ. of Milan 1954. He was a researcher at American Science and Engineering Corporation (1959–73), professor...

McEnroe, John Patrick, Jr.

(Encyclopedia)McEnroe, John Patrick, Jr. măkˈənrōˌ [key], 1959–, American tennis player, b. Weisbaden, West Germany. He grew up in Douglaston, Queens, N.Y. After winning the National Collegiate Athletic Asso...

Bonnie and Clyde

(Encyclopedia)Bonnie and Clyde, Bonnie Parker, 1910–34, b. Rowena, Tex., and Clyde Barrow, 1909–34, b. Tellice, Tex., notorious American criminals during the Great Depression. Joining forces in 1932, they trave...

Tate, Allen

(Encyclopedia)Tate, Allen (John Orley Allen Tate), 1899–1979, American poet and critic, b. Winchester, Ky., grad. Vanderbilt Univ., 1922. He was one of the founders and editors of the Fugitive (1922–25), a maga...

Treitschke, Heinrich von

(Encyclopedia)Treitschke, Heinrich von hīnˈrĭkh fən trīchˈkə [key], 1834–96, German historian. A fervid partisan of Prussia, he left Baden at the outbreak of the Austro-Prussian War (1866) and became profe...

iron

(Encyclopedia)iron, metallic chemical element; symbol Fe [Lat. ferrum]; at. no. 26; at. wt. 55.845; m.p. about 1,535℃; b.p. about 2,750℃; sp. gr. 7.87 at 20℃; valence +2, +3, +4, or +6. Iron is biologically s...

hydrogen sulfide

(Encyclopedia)hydrogen sulfide, chemical compound, H2S, a colorless, extremely poisonous gas that has a very disagreeable odor, much like that of rotten eggs. It is slightly soluble in water and is soluble in carbo...

hybrid

(Encyclopedia)hybrid hīˈbrĭd [key], term applied by plant and animal breeders to the offspring of a cross between two different subspecies or species, and by geneticists to the offspring of parents differing in ...

herbarium

(Encyclopedia)herbarium, collection of dried and mounted plant specimens used in systematic botany. To preserve their form and color, plants collected in the field are spread flat in sheets of newsprint and dried, ...

grunt

(Encyclopedia)grunt, common name for members of the family Haemulidae, carnivorous fish of warm seas, most species of which are small and brightly colored. They are sound-producers, creating their noises by grindin...