ponor

plural ponors

1. geographyA natural surface opening associated with karst.

   Ponors are one of the symbol features of karst regions, and crucial features from a hydrogeological and geotechnical point of view.

   2004, Petar Milanovic, Water Resources Engineering in Karst, page 22

   3 more examples

   As long as the total capacity q of the spring is smaller than the total capacity q₂ of the ponor, no flooding of the polje will occur.

   1981, Petar T. Milanović, Karst hydrogeology, page 168

   The only permanent sea ponor in the world is the sea mill of Argostoli, located on Kefalonia Island in the Ionian Sea (Greece) (Glanz, 1965).

   2004, John Gunn, Encyclopedia of Caves and Karst Science, page 1283

   The characteristic features of the ponors of glaciokarst mainly manifest in the fact that they were mostly formed in karstic depressions or in glacial erosional depressions.

   2018, Márton Veress, Glaciokarsts, page 203

1. A village and commune of Alba County, Romania.
2. A village in Pui, Hunedoara County, Romania.