单词 | firn |
释义 | firn/ˈfɪən![]() noun [mass noun] Crystalline or granular snow, especially on the upper part of a glacier, where it has not yet been compressed into ice.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....
OriginMid 19th century: from German, from Old High German firni 'old'; related to Swedish forn 'former'. |
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