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Europa Island

(Encyclopedia)Europa Island yo͝orōˈpə [key], volcanic island, c.11 sq mi (28 sq km), between Madagascar and Mozambique in the Mozambique Channel, W Indian Ocean, part of the Scattered Islands district in the Fr...

grease

(Encyclopedia)grease, mixture of lubricant and thickener. It is used to reduce friction between surfaces from which oils would leak away or cause damage by dripping, or where lubrication must be assured for extende...

Great Sandy Desert

(Encyclopedia)Great Sandy Desert, Australia's second-largest desert, c.110,000 sq mi (284,900 sq km), Western Australia and Northern Territory. Lying between the Tanami Desert (NE) and the Gibson Desert (S), it is ...

Tromelin Island

(Encyclopedia)Tromelin Island trōmlăNˈ [key], c.1 sq mi (2.6 sq km), in the Indian Ocean c.260 mi (420 km) E of Madagascar, part of the Scattered Islands district with the French Southern and Antarctic Lands. A ...

polybrominated biphenyl

(Encyclopedia)polybrominated biphenyl or PBB, any of a group of organic compounds used as a fire retardant. In 1973 several thousand pounds of PBB were accidentally mixed with livestock feed that was later distribu...

Anticosti

(Encyclopedia)Anticosti ăntĭkŏsˈtē [key], low, flat island, 135 mi (217 km) long and 10 to 30 mi (16–48 km) wide, E Que., Canada, at the head of the Gulf of St. Lawrence. The isl...

Habitat for Humanity

(Encyclopedia)Habitat for Humanity, nonprofit ecumenical Christian organization that enables low-income people to own affordable, livable housing. Headquartered in Americus, Ga., it was founded in 1976 by former bu...

Hayes, Carlton Joseph Huntley

(Encyclopedia)Hayes, Carlton Joseph Huntley, 1882–1964, American historian and diplomat, b. Afton, N.Y. He began teaching history at Columbia in 1907, and from 1935 to his retirement in 1950 he held the Seth Low ...

kame

(Encyclopedia)kame kām [key], low, steep, rounded hill or ridge of layered sand and gravel drift, developed from glacial deposits. Kames were probably formed by streams of melting glacial ice that deposited mud an...

solder

(Encyclopedia)solder sŏdˈər [key], metal alloy used in the molten state as a metallic binder. The type of solder to be used is determined by the metals to be united. Soft solders are commonly composed of lead an...