esker

英 ['eskə(r)] 美 ['eskər]

• n. 冰河沙堆(蛇形丘)

英英释义

Noun:

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

词汇搭配

• double esker 重叠蛇形丘