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Snake, river, United States

(Encyclopedia) Snake, river, 1,038 mi (1,670 km) long, NW United States, the chief tributary of the Columbia; once called the Lewis River. The Snake rises in NW Wyoming, in Yellowstone National Park…

sea urchin

(Encyclopedia) sea urchin, spherical-shaped echinoderm with movable spines covering the body. The body wall is a firm, globose shell, or test, made of fused skeletal plates and marked by regularly…

lancelet

(Encyclopedia) lancelet, name for small, fishlike lower chordate (see Chordata), also called amphioxus; it shows many affinities with the vertebrates. There are about 30 lancelet species, most…

human papillomavirus

(Encyclopedia) human papillomavirus (HPV), any of a family of more than 100 viruses that cause various growths, including plantar warts and genital warts, a sexually transmitted disease. Genital…

Actium

(Encyclopedia) ActiumActiumăkˈtēəm, –shē– [key], promontory, NW Acarnania, Greece, at the mouth of the Ambracian Gulf. There are vestiges of several temples and an ancient town. At Actium was fought…

Sittwe

(Encyclopedia) SittweSittwesĭtˈwē [key] or AkyabSittweăk yăbˈ [key], city (1983 pop. 107,607), capital of Rakhine State, W Myanmar, at the mouth of the Kaladan River and on the Bay of Bengal. It is…

Passamaquoddy Bay

(Encyclopedia) Passamaquoddy BayPassamaquoddy Baypăsəməkwŏdˈē [key], inlet of the Bay of Fundy, between Maine and New Brunswick, at the mouth of the St. Croix River. Most of it (including Campobello…

Kaministikwia

(Encyclopedia) KaministikwiaKaministikwiakəmĭnˌĭstĭkˈwēə [key], river, c.60 mi (100 km) long, rising in Dog Lake, W Ont., Canada, and flowing S, then E into Lake Superior at Thunder Bay. In fur trade…

Luleå

(Encyclopedia) LuleåLuleålüˈləōˌ [key], city (1990 pop. 42,730), capital of Norrbotten co., NE Sweden, a port on the Gulf of Bothnia at the mouth of the Luleälv River. Although its harbor is icebound…

Nelson, river, Canada

(Encyclopedia) Nelson, river, c.400 mi (640 km) long, issuing from the northeast end of Lake Winnipeg, central Man., Canada, and flowing NE to Hudson Bay at Port Nelson. With the Bow–South…