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terrace
(Encyclopedia)terrace, a level field built on top of a hillslope into the floor of a deep valley to improve cultivation of crops. Terracing uses the runoff from the hill to increase soil retentiveness and arability...swan
(Encyclopedia)swan, common name for a large aquatic bird of both hemispheres, related to ducks and geese. It has a long, gracefully curved neck and an extremely long, convoluted trachea which makes possible its far...Aegean civilization
(Encyclopedia)Aegean civilization ējēˈən [key], term for the Bronze Age cultures of pre-Hellenic Greece. The complexity of those early civilizations was not suspected before the excavations of archaeologists in...loon
(Encyclopedia)loon, common name for migratory aquatic birds found in fresh- and saltwater in the colder parts of the Northern Hemisphere. Its strange, laughing call carries for great distances. Like the grebes, loo...saxifrage
(Encyclopedia)saxifrage săkˈsĭfrĭj [key], common name for several members of the Saxifragaceae, a family of widely varying herbs, shrubs, and small trees of cosmopolitan distribution. They are found especially ...mesquite, in botany
(Encyclopedia)mesquite mĭskētˈ, mĕsˈkēt [key], any plant of the genus Prosopis, leguminous spiny trees or shrubs of the family Leguminosae (pulse family), native to tropical and subtropical regions. The seed ...Sierra Club
(Encyclopedia)Sierra Club, national organization in the United States dedicated to the preservation and expansion of the world's parks, wildlife, and wilderness areas. Founded (1892) in California by a group led by...Keeshond
(Encyclopedia)Keeshond kāsˈhŏnd [key] (pl. Keeshonden), breed of medium-sized nonsporting dog raised in Holland for several hundred years and introduced into England in the year 1900. It stands about 18 in. (46 ...Brisbane, Sir Thomas Makdougall
(Encyclopedia)Brisbane, Sir Thomas Makdougall brĭzˈbən, –bān [key], 1773–1860, British soldier, astronomer, and colonial administrator in Australia, b. Scotland. From 1793 to 1814 he served in the army in F...wave, in the earth sciences
(Encyclopedia) CE5 A. Diagram of wave: Wave travels one wavelength during one period B. Diagram of wave: Phase relationships wave, in oceanography, an oscillating movement up and down, of a body of water caused ...Browse by Subject
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