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erosion

(Encyclopedia)erosion ĭrōˈzhən [key], general term for the processes by which the surface of the earth is constantly being worn away. The principal agents are gravity, running water, near-shore waves, ice (most...

Northeast Canyons and Seamounts Marine National Monument

(Encyclopedia)Northeast Canyons and Seamounts Marine National Monument, 4,913 sq mi (12,725 sq km), NW Atlantic Ocean, 130 mi (210 km) off the coast of Cape Cod; est. 2016. The monument is divided into two areas; o...

La Jolla

(Encyclopedia)La Jolla lə hoiˈyə [key], on the Pacific Ocean, S Calif., an uninc. district within the confines of San Diego; founded 1869. The beautiful ocean beaches, in particular La Jolla shores and Black's B...

diapensia

(Encyclopedia)diapensia dīəpĕnˈsēə [key], common name for the Diapensiaceae, a family of low evergreen shrubs native to cool and arctic regions of the Northern Hemisphere. The species that are restricted to t...

Frobisher, Sir Martin

(Encyclopedia)Frobisher, Sir Martin frōˈbĭshər [key], 1535?–1594, English mariner. He went to sea as a boy, and spent much of his youth in the African trade. He later gained the friendship of Sir Humphrey Gil...

North America

(Encyclopedia)CE5 North America, third largest continent (2015 est. pop. 571,949,000), c.9,400,000 sq mi (24,346,000 sq km), the northern of the two continents of the Western Hemisphere. North America includes a...

Ashmore and Cartier Islands

(Encyclopedia)Ashmore and Cartier Islands ăshˈmōr, cärˌtē-āˈ [key], unhabited tropical islands, 2 sq mi (5 sq km), E Indian Ocean, a dependency of Australia located 190 mi (300 km) NW of N Western Australia...

Tabora

(Encyclopedia)Tabora täbōˈrä [key], municipality (2012 pop. 226,999), capital of Tabora region, W central Tanzania. It is a trade and transportation center, connected by rail with Dar es Salaam on the Indian Oc...

wolf

(Encyclopedia)wolf, carnivorous mammal of the genus Canis in the dog family. Once distributed over most of the Northern Hemisphere, wild wolves are now confined to the wilder parts of a reduced range. Three wolf sp...

icebreaker

(Encyclopedia)icebreaker, ship of special hull design and wide beam, with relatively flat bottom, designed to force its way through ice. When the icebreaker charges into the ice at full speed, its sharply inclined ...