Definition of karren in English:

karren

plural noun

Geology
  • Grooves and fissures, typically separated by sharp ridges, produced in a hard limestone surface by water erosion.

    • ‘Karren are particularly common on limestone pavements.’
    • ‘In the northern limestone Alps large bare karst areas with impressive Karren exist.’
    • ‘As a result of karren development the fissures are widened and channel edges are eroded.’

Origin

Late 19th century: from German Karren.

Pronunciation:

karren

/ˈkarən/