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Llano Estacado

(Encyclopedia)Llano Estacado läˈnō ĕstəkäˈdō [key] or Staked Plain, level, semiarid, plateaulike region of the S Great Plains, c.40,000 sq mi (103,600 sq km), E N.Mex. and W Tex., between the Pecos River an...

Opelousas

(Encyclopedia)Opelousas ŏpəlo͞oˈsəs [key], city (1990 pop. 18,151), seat of St. Landry parish, S central La.; inc. 1821. Its industries are based chiefly on the agricultural products and livestock of the surro...

Kivu, lake, Congo and Rwanda

(Encyclopedia)Kivu, lake, 1,042 sq mi (2,699 sq km), 55 mi (89 km) long, on the Congo-Rwanda border, E central Africa; highest lake in Africa (4,788 ft/1,459 m). It is drained by the Ruzizi River, which flows S int...

STP

(Encyclopedia)STP or standard temperature and pressure, standard conditions for measurement of the properties of matter. The standard temperature is the freezing point of pure water, 0℃ or 273.15K. The standard...

Salina

(Encyclopedia)Salina səlīˈnə [key], city (1990 pop. 42,303), seat of Saline co., central Kans., on the Smoky Hill River; founded 1858 by settlers opposed to slavery, inc. 1870. It is the marketing and shipping ...

Przemyśl

(Encyclopedia)Przemyśl pshĕˈmĭshəl [key], Ukr. Peremyshl, city (1989 est. pop. 67,000), Podkarpackie prov., extreme SE Poland, on the San River in the Carpathian foothills. It is a trade center and has metalwo...

Anchorage

(Encyclopedia)Anchorage ăngˈkərĭj [key], city (2020 pop. 291,247), Anchorage census div., S central Alaska, a port at the head of Cook Inlet; inc. 1920. It is the largest city in th...

palladium, chemical element

(Encyclopedia)palladium [Gr. Pallas, goddess of wisdom], metallic chemical element; symbol Pd; at. no. 46; at. wt. 106.42; m.p. 1,554℃; b.p. 2,970℃; sp. gr. 12.02 at 20℃; valence +2, +3, or +4. Palladium is a...

solid

(Encyclopedia)solid, one of the three commonly recognized states in which matter occurs, i.e., that state, as distinguished from liquid and gas, in which a substance has both a definite shape and a definite volume....

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...