An area of irregular limestone in which erosion has produced fissures, sinkholes, underground streams, and caverns.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "karst" in a sentence
"The base, nested in karst on the southern edge of the Plain of Jars, was the headquarters for the CIA-funded Meo army commanded by General Vang Pao."
"The term "karst" -- a limestone region of underground rivers, gorges, and caves -- originated in Slovenia's Karst plateau between Ljubljana and the Italian border."
"It is a classic example of contact karst between the limestone and impermeable rock and is the type location for the landforms and terms karst and doline (swallowhole)."