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4 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 es·ker /ˈɛskɚ/
 冰河砂堆

From: Webster's Revised Unabridged Dictionary (1913)

 Es·char n.  Geol. In Ireland, one of the continuous mounds or ridges of gravelly and sandy drift which extend for many miles over the surface of the country, deposited by streams in meltwater channels under glaciers.  Similar ridges in Scotland are called kames or kams.  The spelling form esker is now the most commonly used, and the term is applied in geology to similar ridges created by glaciers anywhere in the world.  Eskers vary in size and extent, but can be 100 feet high and up to 100 miles long. [Written also eskar and esker.]
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From: Webster's Revised Unabridged Dictionary (1913)

 Es·kar or Es·ker, n. Geol. See Eschar.
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From: WordNet (r) 2.0

 esker
      n : (geology) a long winding ridge of post glacial gravel and
          other sediment; deposited by meltwater from glaciers or
          ice sheets