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artesian well

(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...

Achaemenids

(Encyclopedia)Achaemenids ăkˌəmĕnˈĭdz [key], dynasty of ancient Persia. They were descended presumably from one Achaemenes, a minor ruler in a mountainous district of SW Iran. His successors, when Elam declin...

gull

(Encyclopedia)gull, common name for an aquatic bird of the family Laridae, which also includes the tern and the jaeger. It is found near all oceans and many inland waters. Gulls are larger and bulkier than terns, a...

John I, king of Portugal

(Encyclopedia)John I (John the Great), 1357?–1433, king of Portugal (1385–1433), illegitimate son of Peter I. He was made (1364) grand master of the Knights of Aviz and exercised his influence in opposition to ...

Pietermaritzburg

(Encyclopedia)Pietermaritzburg pēˌtərmărˈĭtsbûrgˌ [key], city, part and seat of Msunduzi local municipality and capital of KwaZulu-Natal prov., E South Africa, in the foothills of the Drakensberg Range. The...

adsorption

(Encyclopedia)adsorption, adhesion of the molecules of liquids, gases, and dissolved substances to the surfaces of solids, as opposed to absorption, in which the molecules actually enter the absorbing medium (see a...

Clingmans Dome

(Encyclopedia)Clingmans Dome, mountain, Tenn.: see Great Smoky Mountains. ...

Petit Nord Peninsula

(Encyclopedia)Petit Nord Peninsula: see Great Northern Peninsula, Canada. ...

Zimbabwe, ruined city, Zimbabwe

(Encyclopedia)Zimbabwe, ruined city, SE Zimbabwe: see Great Zimbabwe. ...

Alexander III, king of Macedon

(Encyclopedia)Alexander III, king of Macedon: see Alexander the Great. ...