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enzyme
(Encyclopedia)enzyme, biological catalyst. The term enzyme comes from zymosis, the Greek word for fermentation, a process accomplished by yeast cells and long known to the brewing industry, which occupied the atten...nuclear reactor
(Encyclopedia)CE5 Power reactor system nuclear reactor, device for producing controlled release of nuclear energy. Reactors can be used for research or for power production. A research reactor is designed to pr...Philadelphia, city, United States
(Encyclopedia)Philadelphia, city (2020 pop. 1,603,797), coextensive with Philadelphia co., SE Pa., on the Delaware River c.100 mi (160 km) upstream at the influx of t...wool
(Encyclopedia)wool, fiber made from the fleece of the domestic sheep. In the United States, by the Wool Products Labeling Act of 1939, the term wool may be applied only to fabrics made entirely of new wool; t...costume
(Encyclopedia)costume, distinctive forms of clothing, including official or ceremonial attire such as ecclesiastical vestments, coronation robes, academic gowns, armor, and theatrical dress. The use of ornament pre...Canadian art and architecture
(Encyclopedia)Canadian art and architecture, the various types and styles arts and structures produced in the geographic area that now constitutes Canada. For a discussion of the art of indigenous peoples of Canada...Philip II, king of Spain, Naples, and Sicily
(Encyclopedia)Philip II, 1527–98, king of Spain (1556–98), king of Naples and Sicily (1554–98), and, as Philip I, king of Portugal (1580–98). Philip was not the bloodthirsty tyrant portrayed by his enemi...Van Buren, Martin
(Encyclopedia)Van Buren, Martin, 1782–1862, 8th President of the United States (1837–41), b. Kinderhook, Columbia co., N.Y. He was again the presidential candidate of the Democratic party in 1840, but he was ...Prime Ministers of Great Britain (table)
(Encyclopedia)Prime Ministers of Great Britain 1 The modern party system did not evolve until the end of the 18th cent. ...Goethe, Johann Wolfgang von
(Encyclopedia)Goethe, Johann Wolfgang von yōˈhän vôlfˈgäng fən göˈtə [key], 1749–1832, German poet, dramatist, novelist, and scientist, b. Frankfurt. One of the great masters of world literature, his ge...Browse by Subject
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