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benzene

(Encyclopedia)benzene bĕnˈzēn, bĕnzēnˈ [key], colorless, flammable, toxic liquid with a pleasant aromatic odor. It boils at 80.1℃ and solidifies at 5.5℃. Benzene is a hydrocarbon, with formula C6H6. The s...

saturation, of an organic compound

(Encyclopedia)saturation, of an organic compound, condition occurring when its molecules contain no double or triple bonds and thus cannot undergo addition reactions. For example, ethane (H3C–CH3) is a saturated ...

welding

(Encyclopedia)welding, process for joining separate pieces of metal in a continuous metallic bond. Cold-pressure welding is accomplished by the application of high pressure at room temperature; forge welding (forgi...

Horsley, Sir Victor Alexander Haden

(Encyclopedia)Horsley, Sir Victor Alexander Haden, 1857–1916, English surgeon and neurologist. A specialist in surgery of the endocrine glands and the nervous system, he devised a noted operation for spinal-cord ...

couvade

(Encyclopedia)couvade ko͞ovädˈ [key], imitation by the father of many of the concomitants of childbirth, at the time of his wife's parturition. The father may retire into seclusion as well as observe various tab...

Hyperion, in astronomy

(Encyclopedia)Hyperion hīpērˈēən [key], in astronomy, one of the named moons, or natural satellites, of Saturn. Also known as Saturn VII (or S7), Hyperion is the largest highly irregular (nonspherical) body in...

Craig, Sir James Henry

(Encyclopedia)Craig, Sir James Henry, 1748–1812, British soldier, governor of Canada (1807–11), b. Gibraltar. He served in the British army from 1763, fighting in the American Revolution and later holding posts...

Creswell, John Angel James

(Encyclopedia)Creswell, John Angel James, 1828–91, U.S. Postmaster General (1869–74), b. Port Deposit, Md. He was a lawyer, U.S. Representative (1863–65), and U.S. Senator (1865–67), but his important work ...

Coldwell, Major James William

(Encyclopedia)Coldwell, Major James William, 1888–1974, Canadian political leader, b. England. He went to Canada in 1910 and became a school administrator in Regina, Sask. He was a leader of the province's Farmer...

Comey, James Brien, Jr.

(Encyclopedia)Comey, James Brien, Jr., 1960–, American law enforcement official, b. Yonkers, N.Y., grad. William and Mary, 1982, Univ. of Chicago Law School, 1985. He was assistant U.S. attorney for the Southern ...