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Port Harcourt

(Encyclopedia)Port Harcourt härˈkərt, –kôrt [key], city (1991 est. pop. 362,000), SE Nigeria, a deepwater port on the Bonny River in the Niger delta. It is an industrial and commercial center where steel and ...

carbide

(Encyclopedia)carbide, any one of a group of compounds that contain carbon and one other element that is either a metal, boron, or silicon. Generally, a carbide is prepared by heating a metal, metal oxide, or metal...

beryl

(Encyclopedia)beryl bĕrˈĭl [key], mineral, a silicate of beryllium and aluminum, Be3Al2Si6O18, extremely hard, occurring in hexagonal crystals that may be of enormous size and are usually white, yellow, green, b...

silicate

(Encyclopedia)silicate, chemical compound containing silicon, oxygen, and one or more metals, e.g., aluminum, barium, beryllium, calcium, iron, magnesium, manganese, potassium, sodium, or zirconium. Silicates may b...

Merseburg

(Encyclopedia)Merseburg mĕrˈzəbo͝ork [key], city (1994 pop. 41,528), Saxony-Anhalt, E central Germany, on the Saale River. It is an industrial city and a lignite-mining center. Manufactures include chemicals, p...

Livorno

(Encyclopedia)Livorno lē vôrˈnô [key], Brit. Leghorn, city (1991 pop. 167,512), capital of Livorno prov., Tuscany, central Italy, on the Ligurian Sea and on the Aurelian Way. It is a busy commercial, industrial...

Maiduguri

(Encyclopedia)Maiduguri mīdo͞oˈgərē [key], town (1991 est. pop. 282,000), capital of Borno state, NE Nigeria. The city is an important industrial center engaged in food processing and aluminum, steel, asbestos...

Kingston, city, Canada

(Encyclopedia)Kingston, city (1991 pop. 56,597), S Ont., Canada, on Lake Ontario, near the head of the St. Lawrence River and at the end of Rideau Canal from Ottawa. Kingston has probably the best harbor on the lak...

deodorizer

(Encyclopedia)deodorizer or deodorant, substance used to absorb or eliminate offensive odors. Disinfectants such as hydrogen peroxide, chlorine, and chlorine compounds eliminate odors caused by microorganisms. Adso...

Ciudad Guayana

(Encyclopedia)Ciudad Guayana gēănˈə, –änˈ– [key], formerly Santo Tomé de Guayana, city, ...