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niello

(Encyclopedia)niello nēĕlˈō [key] [Ital. from Latin nigellus=blackish], black metallic alloy of sulfur, copper, silver, and usually lead, used as an inlay on engraved metal. The metal surface is brushed with a ...

seaborgium

(Encyclopedia)seaborgium sēbôrˈgēəm [key], artificially produced radioactive chemical element; symbol Sg; at. no. 106; mass number of most stable isotope 271; m.p., b.p., sp. gr., and valence unknown. Situated...

Mattis, James

(Encyclopedia)Mattis, James, 1950–, American general and secretary of defense (2017–18), b. Pullman, Wash., grad. Central Washington Univ. (1971). Commissioned as a second lieutenant (1972) in the Marines after...

malnutrition

(Encyclopedia)malnutrition, insufficiency of one or more nutritional elements necessary for health and well-being. Primary malnutrition is caused by the lack of essential foodstuffs—usually vitamins, minerals, or...

Kaifu, Toshiki

(Encyclopedia)Kaifu, Toshiki tōˈshēkē kīˈfo͞o [key], 1931–, Japanese politician. A graduate of the law faculty at Waseda Univ., Kaifu ran successfully for parliament in 1954. A member of the Liberal Democr...

embolus

(Encyclopedia)embolus ĕmˈbələs [key], foreign matter circulating in and obstructing a blood vessel. It may be a portion of a clot that has separated from the wall of a vessel (see thrombosis), a bubble of gas o...

age grade and age set

(Encyclopedia)age grade and age set, differentiation of social role based on age, commonly found in small-scale societies of North America and East Africa. Age sets are a type of sodality (nonresidential groups tha...

Cárdenas, García López de

(Encyclopedia)Cárdenas, García López de gärthēˈä lōˈpĕth dā kärˈdānäs [key], fl. 1540, Spanish explorer in the Southwest. A member of the 1540 expedition of Francisco Vásquez de Coronado, he was sel...

Bytom

(Encyclopedia)Bytom bĭˈtôm [key], Ger. Beuthen, city (1994 est. pop. 232,400), Śląskie prov., SW Poland, in the Katowice mining region. An important heavy industrial center, it has iron- and steelworks and the...

prejudice

(Encyclopedia)prejudice, unsubstantiated prejudgment of an individual or group, favorable or unfavorable in character, tending to action in a consonant direction. The hostility that prejudice can engender and the d...
 

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