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fireproofing

(Encyclopedia)fireproofing, method of making normally combustible materials as nearly noncombustible as possible. Fireproofing generally applies to textiles and construction materials that are treated with a soluti...

lichen

(Encyclopedia)lichen līˈkən [key], usually slow-growing organism of simple structure, composed of fungi (see Fungi) and photosynthetic green algae or cyanobacteria living together in a symbiotic relationship and...

tornado

(Encyclopedia)tornado, dark, funnel-shaped cloud containing violently rotating air that develops below a heavy cumulonimbus cloud mass and extends toward the earth. The funnel twists about, rises and falls, and whe...

Zapotec

(Encyclopedia)Zapotec zäˈpətĕk, säˈ– [key], indigenous people of Mexico, primarily in S Oaxaca and on the Isthmus of Tehuantepec. Little is known of the origin of the Zapotec. Unlike most native peoples of ...

Falkland Islands

(Encyclopedia)Falkland Islands fôkˈlənd [key], Span. Islas Malvinas, group of islands (2015 est. pop. 3,000), 4,618 sq mi (11,961 sq km), S Atlantic, c.300 mi (480 km) E of the Strait of Magellan. The islands ar...

Maugham, Somerset

(Encyclopedia)Maugham, Somerset (William Somerset Maugham) môm [key], 1874–1965, English writer, b. Paris. He was noted as an expert storyteller and a master of the technique of fiction. An introverted child aff...

kangaroo

(Encyclopedia)kangaroo, name for a variety of hopping marsupials, or pouched mammals, of the family Macropodidae, found in Australia, Tasmania, and New Guinea. The term is applied especially to the large kangaroos ...

ventilation

(Encyclopedia)ventilation, process of supplying fresh air to an enclosed space and removing from it air contaminated by odors, gases, or smoke. Proper ventilation requires also that there be a movement or circulati...

Sea Islands

(Encyclopedia)Sea Islands, chain of more than 100 low islands off the Atlantic coast of S.C., Ga., and N Fla., extending from the Santee River to the St. Johns River. The ocean side of the islands is generally sand...

sea level

(Encyclopedia)sea level, the level of the sea, which serves as the datum used for measurement of land elevations and ocean depths. Theoretically, one would expect sea level to be a fixed and permanent horizontal su...