Columbia Encyclopedia

Search results

500 results found

Bar-le-Duc

(Encyclopedia)Bar-le-Duc bär-lə-dükˈ [key], town, capital of Meuse dept., NE France, in Lorraine. It has ...

chromite

(Encyclopedia)chromite krōˈmīt [key], dark brown to black mineral. It is an iron-chromium oxide, FeCr2O4, with traces of magnesium and aluminum. Its crystals are octahedral, but rare; it usually occurs as irregu...

Coatesville

(Encyclopedia)Coatesville kōtsˈvĭl [key], city (2020 pop. 12,987), Chester co., SE Pa., on Brandywine Creek, ...

Cóbh

(Encyclopedia)Cóbh kōv [key] [Irish,=cove], town, Co. Cork, S Republic of Ireland, on the south shore of ...

Fischer-Tropsch process

(Encyclopedia)Fischer-Tropsch process fĭshˈər-trōpsh [key], method for the synthesis of hydrocarbons and other aliphatic compounds. Synthesis gas, a mixture of hydrogen and carbon monoxide, is reacted in the pr...

Tuscaloosa

(Encyclopedia)Tuscaloosa təskəlo͞oˈsə [key], city (1990 pop. 77,759), seat of Tuscaloosa co., W central Ala., on the Black Warrior River; inc. 1819. It is a transportation and manufacturing center, with indust...

Belleville, cities, United States

(Encyclopedia)Belleville. 1 City (2020 pop. 42,404), seat of St. Clair co., SW Ill.; inc. 1819. Located in a coal-mining area, Belleville also has farm-related ...

olivine

(Encyclopedia)olivine ŏlĭvˈēn [key], an iron-magnesium silicate mineral, (Mg,Fe)2SiO4, crystallizing in the orthorhombic system. It is a common constituent of magnesium-rich, silica-poor igneous rocks; metamorp...

Palencia

(Encyclopedia)Palencia pälānˈthēä [key], city (1990 pop. 77,464), capital of Palencia prov., N central Spain, in Castile and León. An industrial center with iron foundries, textile mills, and chemical plants,...

amphibole

(Encyclopedia)amphibole ămˈfəbōlˌ [key], any of a group of widely distributed rock-forming minerals, magnesium-iron silicates, often with traces of calcium, aluminum, sodium, titanium, and other elements. The ...