Definition of cwm in English:

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Pronunciation: /kʊm/


A cirque, especially one in the mountains of Wales: [in place names]: there is a dusting of snow in Cwm Glas Mawr
More example sentences
  • Three prominent thin bands of pale-coloured calc-silicate marbles occur on the Lhotse face in the western cwm on the north face of Lhotse and high on the south face of the Lhotse-Nuptse ridge.
  • The Everest greenschists are thickest on the SW face of Everest and across the western cwm on Lhotse.
  • The last snow shone on the slopes of the Brecon Beacons: pure white on the peaks and in the cwms, grey and stratified on the windward faces.


Mid 19th century: Welsh; related to combe.

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