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polycarbonates

(Encyclopedia)polycarbonates, group of clear, thermoplastic polymers used mainly as molding compounds (see plastic). Polycarbonates are prepared by the reaction of an aromatic difunctional phenol with either phosge...

Banks Island

(Encyclopedia)Banks Island, c.26,000 sq mi (67,340 sq km), NW Northwest Territories, Canada, in the Arctic Ocean, in the Arctic Archipelago. It is the westernmost of the group and is separated from the mainland by ...

Troms

(Encyclopedia)Troms trôms, tro͝oms [key], county (1995 pop. 150,606), c.10,070 sq mi (26,080 sq km), N Norway, bordering on the Norwegian Sea (an arm of the Atlantic Ocean) in the west and on Sweden and Finland i...

actinomycin

(Encyclopedia)actinomycin ăkˌtənōmīˈsən [key], any one of a group of antibiotics produced by bacteria of the genus Streptomyces. Actinomycin was the first antibiotic reported to be able to halt cancer; howev...

Quids

(Encyclopedia)Quids, in U.S. political history, an extreme states' rights group of Jeffersonian Republicans led by John Randolph of Virginia. Feeling that Thomas Jefferson and James Madison had retreated from the s...

Rankin, Jeannette

(Encyclopedia)Rankin, Jeannette, 1880–1973, American pacifist, b. Missoula, Mont. She was active in social work and campaigned for woman suffrage. A Republican, she was the first woman in the United States to ser...

Wilson, Kenneth Geddes

(Encyclopedia)Wilson, Kenneth Geddes, 1936–2013, American physicist, b. Waltham, Mass., Ph.D. California Institute of Technology, 1961. A professor at Cornell (1963–88) and Ohio State Univ. (1988–2008), Wilso...

Yates, Richard, American political leader

(Encyclopedia)Yates, Richard, 1815–73, American political leader, b. Warsaw, Ky. He studied law and became a lawyer and Whig politician in Jacksonville, Ill. A state legislator (1842–46, 1848–50) and U.S. Con...

Tagalog

(Encyclopedia)Tagalog tägälˈ [key], dominant people of Luzon, the Philippines, and the second largest ethnolinguistic group in the Philippines. They number about 16 million. Most of the population is Christian. ...

Bilac, Olavo

(Encyclopedia)Bilac, Olavo o͝oläˈvo͝o bēläkˈ [key], 1865–1918, Brazilian poet, journalist, and critic. He was the chief poet of the Brazilian group related to the French Parnassians. His writings have an e...