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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...

Giddings, Joshua Reed

(Encyclopedia)Giddings, Joshua Reed, 1795–1864, American abolitionist, b. Tioga Point (now Athens), Pa. A successful lawyer in Jefferson, Ohio, he represented the Western Reserve in Congress (1838–59). For his ...

Isonzo

(Encyclopedia)Isonzo ēzônˈtsō [key], river, 87 mi (140 km) long, rising in the Julian Alps, NW Slovenia, and flowing S through Slovenia, where it is known as the Soča, then SW through NE Italy before emptying ...

Sava

(Encyclopedia)Sava säˈvä [key], Hung. Száva, c.580 mi (930 km) long, rising in two headstreams in the Julian Alps, Slovenia, and flowing generally SE past Ljubljana and Zagreb, Croatia, then forming part of the...

Victorinus

(Encyclopedia)Victorinus (Caius Marius Victorinus Afer) vĭktərīˈnəs [key], fl. 361, Roman grammarian, b. Africa. He became renowned as a teacher of rhetoric in Rome and as an advocate of Neoplatonism. Becoming...

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 ...

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...

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...