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electronegativity

(Encyclopedia)electronegativity ĭlĕkˌtrōnĕgətĭvˈətē [key], in chemistry, tendency for an atom to attract a pair of electrons that it shares with another atom (see chemical bond). For example, the molecule...

fiat money

(Encyclopedia)fiat money fīˈət, fīˈăt [key], inconvertible money that is made legal tender by the decree, or fiat, of the government but that is not covered by a specie reserve. It is commonly understood to b...

Udine

(Encyclopedia)Udine o͞oˈdēnā [key], city (1991 pop. 99,189), capital of Udine prov., Friuli–Venezia Giulia, NE Italy. Manufactures include machinery, textiles, metals, and chemicals. In the 10th cent. Emperor...

thermite

(Encyclopedia)thermite [from Thermit, a trade name], mixture of powdered or granular aluminum metal and powdered iron oxide. When ignited it gives off large amounts of heat. In wartime it has been used in incendiar...

Pskov

(Encyclopedia)Pskov pəskôfˈ [key], city (1989 pop. 204,000), capital of Pskov region, NW European Russia, on the Velikaya River. It is an important rail junction in the heart of a flax-growing area. Industries i...

rheology

(Encyclopedia)rheology rēŏlˈəjē [key], branch of physics dealing with the deformation and flow of matter. It is particularly concerned with the properties of matter that determine its behavior when a mechanica...

Warwick, city, United States

(Encyclopedia)Warwick wôrˈwĭk, wŏˈrĭk [key], city (1990 pop. 85,427), Kent co., central R.I., at the head of Narragansett Bay; settled by Samuel Gortone 1642, inc. as a city 1931. Its long important textile i...

casting

(Encyclopedia)casting or founding, shaping of metal by melting and pouring into a mold. Most castings, especially large ones, are made in sand molds. Sand, mixed with a binder to hold it together, is pressed around...

Callao

(Encyclopedia)Callao käyouˈ [key], city, capital of the constitutional prov. of Callao, W Peru, on Callao...

Incheon

(Encyclopedia)Incheon or Inchon ĭnˈchän, Korean ēnchən [key], city, Gyeonggi (Kyonggi) prov., NW South Korea, on the Yellow Se...