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White Sulphur Springs

(Encyclopedia)White Sulphur Springs, city (1990 pop. 2,779), Greenbrier co., SE W.Va., in the Allegheny Mts. near the Virginia border; settled c.1750. A mineral springs health resort since early 1800s, it is the si...

Latina

(Encyclopedia)Latina lätēˈnä [key], city (1991 pop. 106,203), capital of Latina prov., in Latium, central Italy, near the Tyrrhenian Sea. It is an industrial, commercial, and agricultural center. Manufactures i...

magnetohydrodynamics

(Encyclopedia)magnetohydrodynamics măgnēˌtōhīˌdrōdīnămˈĭks [key], study of the motions of electrically conducting fluids and their interactions with magnetic fields. The principles of magnetohydrodynamic...

Snowdon

(Encyclopedia)Snowdon, Welsh Yr Wyddfa, highest mountain of Wales, 3,560 ft (1,085 m) high, Gwynedd, NW Wales. Its five peaks are separated by passes. There is a rack and pinion railway (opened 1896) from Llanberis...

cruise missile

(Encyclopedia)cruise missile, low-flying, continuously powered offensive missile designed to evade defense systems. A cruise missile typically uses an aircraft engine rather than a rocket engine to fly at subsonic ...

frigate

(Encyclopedia)frigate frĭgˈĭt [key], originally a long, narrow nautical vessel used on the Mediterranean, propelled by either oars or sail or both. Later, during the 18th and early 19th cent., the term was appli...

dating

(Encyclopedia)dating, the determination of the age of an object, of a natural phenomenon, or of a series of events. There are two basic types of dating methods, relative and absolute. In relative dating, the tempor...

Savannah, river, United States

(Encyclopedia)Savannah, river, 314 mi (505 km) long, formed by the confluence of the Tugaloo and Seneca rivers and flowing SE to the Atlantic Ocean; with the Tugaloo it forms the entire S.C.–Ga. boundary. Savanna...

Gatchina

(Encyclopedia)Gatchina gäˈchēnə [key], city (1989 pop. 80,000), NW European Russia. The city developed around the imperial palace (built 1766–81), which was used as a summer residence by Paul I in the 18th ce...

Hitachi

(Encyclopedia)Hitachi hētäˈchē [key], city, Ibaraki prefecture, E central Honshu, Japan, on the Kashima ...