Definition of firn in English:

firn

Syllabification: firn
Pronunciation: /fi(ə)rn
 
/

noun

  • Granular snow, especially on the upper part of a glacier, where it has not yet been compressed into ice.
    More example sentences
    • About a quarter of that shrinkage, or 7 cm, may have resulted from snow packing down into denser material called firn, says Andrew Shepherd, a glaciologist at the University of Cambridge in England.
    • Combine such dense firn with a daily rhythm of freeze and thaw, and spring avalanche danger is easy to predict and avoid.

Origin

mid 19th century: from German, from Old High German firni 'old'; related to Swedish forn 'former'.

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