1. perpetual snow
Wikipedia definition
2. FirnFirn (from German Firn with the same meaning, cognate with for) is partially compacted névé, a type of snow that has been left over from past seasons and has been recrystallized into a substance denser than névé. It is ice that is at an intermediate stage between snow and glacial ice. Firn has the appearance of wet sugar, but has a hardness that makes it extremely resistant to shovelling.
Read “Firn” on English Wikipedia
Read “万年雪” on Japanese Wikipedia
Read “Firn” on DBpedia


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