esker

名词 n.
中文释义
英 /ˈɛskə/    美 /ˈɛskɚ/

英文释义

名词 n.
  1. A long, narrow, sinuous ridge created by deposits from a stream running beneath a glacier.
    — Another unusual ice-contact feature is an esker, a long, narrow, steep-sided ridge of glaciofluvial sand and gravel inhabiting a glaciated area. Eskers tend to follow valleys and lowlands, carefully picking a course between obstacles.

词形变化

eskers plural eskar alternative

词源

From Irish eiscir (“esker, glacial ridge”).
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