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Saint Ann

(Encyclopedia)Saint Ann, city (1990 pop. 14,489), St. Louis co., E Mo., a NW suburb of St. Louis; inc. 1948. It is primarily residential, with a major shopping mall. Lambert–St. Louis International Airport is nea...

Grandview

(Encyclopedia)Grandview, city (2020 pop. 26,209), Jackson co., W Mo., S of Kansas City; inc. 1912. Hardware, chemicals, transportation equipment, apparel, steel, proc...

Fort Leonard Wood

(Encyclopedia)Fort Leonard Wood, U.S. army post, 71,000 acres (28,700 hectares), S central Mo.; est. 1940. It is one of the largest basic-training centers in the United States and also provides training for army en...

Lee's Summit

(Encyclopedia)Lee's Summit, city (1990 pop. 46,418), Jackson co., W Mo., in the Kansas City metropolitan area; inc. 1868. The city is an important trucking center and manufactures communications equipment, applianc...

xenon

(Encyclopedia)xenon zēˈnŏn [key] [Gr.,=strange], gaseous chemical element; symbol Xe; at. no. 54; at. wt. 131.293; m.p. −111.9℃; b.p. −107.1℃; density 5.86 grams per liter at STP; valence usually 0. Xeno...

Hazelwood

(Encyclopedia)Hazelwood, city (2020 pop. 25,458), St. Louis co., E. Mo., a suburb of St. Louis; inc. as a village 1949, city charter approved 1969. Manufactures inclu...

Clayton

(Encyclopedia)Clayton, city (2020 pop. 17,355), seat of St. Louis co., E central Mo., a suburb of St. Louis; inc. 1919. Developed in the 1960s, it has high-rise offic...

North Fork

(Encyclopedia)North Fork, river, c.100 mi (160 km) long, rising in the Ozarks, S Mo., and flowing S, into N Ark., to the White River. Near its mouth is Norfolk Dam (completed 1944), which impounds Norfolk Lake and ...

Washington University

(Encyclopedia)Washington University, at St. Louis, Mo.; coeducational; est. as Eliot Seminary 1853, opened 1854, renamed 1857. It has a well-known medical school and school of social work as well as research center...

frequency

(Encyclopedia)frequency: see harmonic motion; wave. ...