Columbia Encyclopedia

(Encyclopedia) Cretaceous period krĭtāˈshəs [key], third and last period of the Mesozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table), lasting from approximately 144 to 65 millio...

(Encyclopedia) Aix-en-Provence ĕk-säN-prôväNsˈ [key], city (2020 metropolitan area pop. 1,608,000), Bouches-du-Rhône dept., in Provence, SE France. It is a commercial center in an ...

(Encyclopedia) artesian well, deep drilled well through which water is forced upward under pressure. The water in an artesian well flows from an aquifer, which is a layer of very porous rock or sediment, usually san...

(Encyclopedia) Lee, Henry, 1756–1818, American Revolutionary soldier, known as Light-Horse Harry Lee, b. Prince William co., Va. He was a cousin of Arthur Lee, Francis L. Lee, Richard H. Lee, and William Lee and w...

(Encyclopedia) Auvergne ōvĕrˈnyə [key], former province and former administrative region, S central France. The area is now occupied chiefly by the departments of Puy-de-Dôme, Allier, Haute-Loire, and Cantal. T...

(Encyclopedia) North Island or Te Ika-a-Maui [Maori,=the fish of Maui] (1996 pop. 2,718,188), 44,702 sq mi (115,777 sq km), New Zealand. It is the smaller but more populous of the two principal islands of the countr...

(Encyclopedia) Monterrey mōntārāˈ [key], city (1990 pop. 1,068,996), capital of Nuevo León state, NE Mexico, the third largest city of Mexico. Located c.150 mi (240 km) S of Laredo, Tex., in a valley surrounded...

(Encyclopedia) Biloxi bĭlŭkˈsē [key], city (2020 pop. 49,449), Harrison co., SE Miss., on a peninsula be...

(Encyclopedia) boric acid, any one of the three chemical compounds, orthoboric (or boracic) acid, metaboric acid, and tetraboric (or pyroboric) acid; the term often refers simply to orthoboric acid. The acids may be...