noun Geology.
an area of limestone terrane characterized by sinks, ravines, and underground streams.

1900–05; < German, generic use of Karst, name of limestone plateau north of Trieste

karstic, adjective
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World English Dictionary
karst (kɑːst)
(modifier) denoting the characteristic scenery of a limestone region, including underground streams, gorges, etc
[C19: German, from Karst, limestone plateau near Trieste]

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Encyclopedia Britannica


terrain usually characterized by barren, rocky ground, caves, sinkholes, underground rivers, and the absence of surface streams and lakes. It results from the excavating effects of underground water on massive soluble limestone. The term originally applied to the Karst, a limestone area on the Dalmatian coast on the Adriatic Sea, but has been extended to mean all areas with similar features.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
The number of endangered karst-dwelling species has been seriously underestimated, the study adds.
Karst refers to landscapes dominated by easily weathered carbonate rocks such
  as limestone and dolomite.
The lakes flow in a meandering series of waterfalls and streams over dynamic
  karst topography.
Karst topography is created by a chemical dissolution process when groundwater
  circulates through soluble rock.
Images for karst
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