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bark, in botany

(Encyclopedia)bark, outer covering of the stem of woody plants, composed of waterproof cork cells protecting a layer of food-conducting tissue—the phloem or inner bark (also called bast). As the woody stem increa...

Quintana Roo

(Encyclopedia)Quintana Roo kēntäˈnä rōˈō [key], state (1990 pop. 493,277), 19,630 sq mi (50,842 sq km), SE Mexico, on the Caribbean. Chetumal is the capital. Occupying most of the eastern part of the Yucatá...

Pike, Zebulon Montgomery

(Encyclopedia)Pike, Zebulon Montgomery, 1779–1813, American explorer, an army officer, b. Lamberton (now part of Trenton), N.J. He joined the army (c.1793) and was commissioned second lieutenant in 1799. In 1805 ...

Ford, Betty

(Encyclopedia)Ford, Betty, 1918–2011, American first lady (1974–77), wife of President Gerald Ford, b. Chicago as Elizabeth Anne Bloomer. A candid, outspoken, and popular first lady, she became an effective soc...

Mohawk, river, United States

(Encyclopedia)Mohawk, river, c.140 mi (230 km) long, rising in central New York and flowing S then SE past Utica and Schenectady to enter the Hudson River at Cohoes. The Mohawk is canalized from Rome to its mouth (...

Yellowstone

(Encyclopedia)Yellowstone, river, 671 mi (1,080 km) long, rising in NW Wyo., and flowing NE through Mont. to enter the Missouri River near the N.Dak. line; it drains c.70,400 sq mi (182,340 sq km). The Yellowstone ...

Zambezi

(Encyclopedia)Zambezi zămbēˈzē [key], river, c.1,700 mi (2,740 km) long, rising in NW Zambia, S central Africa, and flowing in an S-shaped course generally E through E Angola, along the Zambia-Zimbabwe border, ...

Thanlwin

(Encyclopedia)Thanlwin sălˌwēnˈ [key], Chin. Nu Jiang, Tibetan Chiama Ngu Chu, river of SE Asia, c.1,750 mi (2,820 km) long, rising in E Tibet region of China, and flowing SE through Yunnan prov. in deep, narro...

James, rivers, United States

(Encyclopedia)James. 1 Unnavigable river, 710 mi (1,143 km) long, rising in central N.Dak. and flowing across S.Dak. to the Missouri River at Yankton, S.Dak. Jamestown Dam on the river is an irrigation and flood co...

canoeing

(Encyclopedia)canoeing, sport of propelling a canoe through water. John MacGregor, an English barrister and founder of the Royal Canoe Club (est. 1865), is generally credited with being the initiator of modern spor...