• Definition for "esker"
    • a lengthy, thin ridge of coarse gravel deposited…
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  • Sentence for "esker"
    • This word came from the Basque…
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esker definition

  • noun:
    • a lengthy, thin ridge of coarse gravel deposited by a stream streaming in or under a decaying glacial ice-sheet. Also known as os3.
    • an extended, narrow, sinuous ridge produced by build up from a stream operating beneath a glacier.
    • (geology) a long winding ridge of post glacial gravel alongside sediment; deposited by meltwater from glaciers or ice sheets
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