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talus
(Encyclopedia)talus tāˈləs [key], deposit of rock fragments detached from cliffs or mountain slopes by weathering and piled up at their bases. A talus is a common geologic feature in regions of high cliffs. The ...quartzite
(Encyclopedia)quartzite, usually metamorphic rock composed of firmly cemented quartz grains. Most often it is white, light gray, yellowish, or light brown, but is sometimes colored blue, green, purple, or black by ...spring, in geology
(Encyclopedia)spring, in geology, natural flow of water from the ground or from rocks, representing an outlet for the water that has accumulated in permeable rock strata underground. Some of the water that falls as...willow
(Encyclopedia)willow, common name for some members of the Salicaceae, a family of deciduous trees and shrubs of worldwide distribution, especially abundant from north temperate to arctic areas. The family consists ...lamp
(Encyclopedia)lamp, originally a vessel for holding oil or some combustible substance that could be burned through a wick for illumination; the term has been extended to other lighting devices. Stones, shells, and ...bat
(Encyclopedia)bat, winged mammal of the order Chiroptera, which includes 900–1,000 species classified in about 200 genera and 17 families. Bats range in size from a wingspread of over 5 ft (150 cm) to a wingsprea...Bowie, David
(Encyclopedia)Bowie, David, 1947–2016, British rock-and-roll singer and songwriter who successfully, merged rock, art, and fashion, b. London as David Robert Jones. After singing with five different bands in the ...well
(Encyclopedia)well, aperture in the earth's surface through which substances in a natural underground reservoir, such as water, gas, oil, salt, and sulfur, can flow or be pumped to the surface. In the United States...executive order
(Encyclopedia)executive order, in the United States, official document initiated and signed by the president containing directives concerning how the executive branch shall carry out its responsibilities under the ...baboon
(Encyclopedia)baboon, any of the large, powerful, ground-living monkeys of the genus Papio, also called dog-faced monkeys. Five subspecies live in Africa, with one species extending into the Arabian peninsula. They...Browse by Subject
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