Definition, Meaning & Synonyms

esker

noun

/ˈɛskər/

Definition

A long, narrow ridge of gravel and sand, typically formed by the deposition of sediment from meltwater streams flowing beneath a glacier.

Examples

The team hiked along the esker, marveling at the unique landscape formed by ancient glacial activity.
Archaeologists found ancient tools and artifacts along the esker, indicating it was once a vital pathway for early humans.

Meaning

An esker is a geological formation that occurs when a river of meltwater flows under a glacier and deposits sediments as it moves. Over time, these deposits create a distinct ridge that can be seen on the surface once the glacier has melted away.