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trench warfare

(Encyclopedia)trench warfare. Although trenches were used in ancient and medieval warfare, in the American Civil War, and in the Russo-Japanese War (1904–5), they did not become important until World War I. The i...

Tyson, Cecily

(Encyclopedia) Tyson, Cecily, 1924-2021, American actress, b. East Harlem, N.Y. Of Caribbean heritage, Tyson began working as a model while studying acting in the la...

anticyclone

(Encyclopedia)anticyclone, region of high atmospheric pressure; anticyclones are commonly referred to as “highs.” The pressure gradient, or change between the core of the anticyclone and its surroundings, combi...

pitot static system

(Encyclopedia)pitot static system pētōˈ [key], device for measuring the rate at which a fluid flows. Among the principal applications of the device are an airspeed indicator for aircraft and a distance and speed...

lionfish

(Encyclopedia)lionfish, common name for a genus (Pterois) of the family Scorpaenidae (see rockfish), comprising venomous subtropical marine fish native to the South Pacific, the Indian Ocean, and the Red Sea. Nativ...

iceberg

(Encyclopedia)iceberg, mass of ice that has become detached, or calved, from the edge of an ice sheet or glacier and is floating on the ocean. Because ice is slightly less dense than water about one ninth of the to...

crane, in zoology

(Encyclopedia)crane, large wading bird found in marshes in the Northern Hemisphere and in Africa. Although sometimes confused with herons, cranes are more closely related to rails and limpkins. Cranes are known for...

Evans, Bill

(Encyclopedia) Evans, Bill, 1929-80, American jazz pianist and composer, b. Plainfield, N.J., as William John Evans, Southeastern Louisiana Univ. (B.Mus., 1950). Eva...

Preah Vihear

(Encyclopedia)Preah Vihear prä wēˈhän [key], Hindu temple dedicated to Shiva, N central Cambodia near the Thai border. Situated on the edge of a plateau overlooking the N Cambodian plain, the temple was begun i...

Hull, city, England

(Encyclopedia)Hull, officially Kingston upon Hull, city and unitary authority, NE England, on the north shore of the Humber estuary at the influx of the small Hul...