noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A depression (basin, hollow) in karstic terrain/limestone.
2. 2
   Any sinkhole. broadly

Synonyms

All synonyms

sinkhole

Etymology

From a Slavic (most likely Russian or Slovene) word dolina ("valley"), perhaps via German Doline.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.