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avalanche

(Encyclopedia)avalanche, rapidly descending large mass of snow, ice, soil, rock, or mixtures of these materials, sliding or falling in response to the force of gravity. Avalanches, which are natural forms of erosio...

Kennebec

(Encyclopedia)Kennebec kĕnˈəbĕk [key], river, 164 mi (264 km) long, rising in Moosehead Lake, NW Maine, and flowing S to the Atlantic; the Androscoggin River is its chief tributary. Samuel de Champlain explored...

gymnastics

(Encyclopedia)gymnastics, exercises for the balanced development of the body (see also aerobics), or the competitive sport derived from these exercises. Although the ancient Greeks (who invented the building called...

sediment

(Encyclopedia)sediment, mineral or organic particles that are deposited by the action of wind, water, or glacial ice. These sediments can eventually form sedimentary rocks (see rock). Sediments form sedimentary ...

Pocatello

(Encyclopedia)Pocatello pōkətĕlˈō [key], city (1990 pop. 46,080), seat of Bannock co., SE Idaho, between mountains on the Portneuf River near its junction with the Snake (there dammed to form the American Fall...

camphor

(Encyclopedia)camphor kămˈfər [key], C10H16O, white, crystalline solid ketone with a characteristic pungent odor and taste. It melts at 176℃ and boils at 204℃. The natural variety, Japan camphor, is obtained...

football

(Encyclopedia)CE5 A professional football field. College teams use a similar field except that the inbound lines are 53 ft 4 in. (16.25 m) from the sidelines. football, any of a number of games in which two opp...

tennis

(Encyclopedia)CE5 Tennis court tennis, game played indoors or outdoors by two players (singles) or four players (doubles) on a level court. In 1900 the international team competition known as the Davis Cup t...

julep

(Encyclopedia)julep jo͞olĭp [key] or mint julep, alcoholic beverage of the S United States. Its basis is properly bourbon whiskey, which is combined with water, sugar, crushed ice, and mint leaves. Juleps are som...

varve

(Encyclopedia)varve, in geology, pair of thin sedimentary layers formed annually by seasonal climatic changes. Usually found in glacial lake deposits, varves consist of a coarse-grained, light-colored summer deposi...