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sun dance

(Encyclopedia)sun dance, ceremony typical of the Plains Indians of North America. The ceremony was performed in the summer and lasted from two to eight days. Some of the ceremony was secret. Smoking, fasting, and o...

Colorado, state, United States

(Encyclopedia)CE5 Colorado kŏlərădˈə, –rădˈō, –räˈdō [key], state, W central United States, one of the Rocky Mt. states. It is bordered by Wyoming (N), Nebraska (N, E), Kansas (E), Oklahoma and Ne...

log cabin

(Encyclopedia)log cabin or log house, style of home typical of the American pioneer on the Western frontier of the United States in the great westward expansion after 1765. It was constructed with few tools, usuall...

Estremadura, region, Portugal

(Encyclopedia)Estremadura əshtrəmədo͞oˈrə [key], region, W Portugal, formerly a province, now divided between the provinces of Estremadura and Ribatejo, with a small part in Beira Litoral. Estremadura provinc...

Namib-Naukluft National Park

(Encyclopedia)Namib-Naukluft National Park, 19,216 sq mi (49,768 sq km), W Namibia, encompassing parts of the Namib Desert and the Naukluft mountain range. It was established in 1979 when the Namib Desert Park (beg...

Mamoré

(Encyclopedia)Mamoré məmo͝orĕˈ [key], river, c.600 mi (965 km) long, formed by tributaries rising in the Andes and plains of central Bolivia. It flows north, past Trinidad, to the Brazilian border. After formi...

locust, in zoology

(Encyclopedia)locust, in zoology, name for certain migratory members of the short-horned grasshopper family (Acrididae). Like other members of this family, locusts have antennae shorter than their bodies, song-prod...

Wilder, Laura Elizabeth Ingalls

(Encyclopedia)Wilder, Laura Elizabeth Ingalls, 1867–1957, American author of the classic Little House series of children's books, b. Pepin, Wis. She and her pioneer family traveled (1869–79) throughout the Midw...

Red River, rivers, United States and Canada

(Encyclopedia)Red River. 1 River, 1,222 mi (1,967 km) long, southernmost of the large tributaries of the Mississippi River. It rises in two branches in the Texas Panhandle and flows SE between Texas and Oklahoma an...

selenium

(Encyclopedia)selenium səlēˈnēəm [key], nonmetallic chemical element; symbol Se; at. no. 34; at. wt. 78.96; m.p. 217℃; b.p. about 685℃; sp. gr. 4.81 at 20℃; valence −2, +4, or +6. Selenium is directly ...