moraine
Moraine (noun) means a mass of rocks and debris carried and left behind by a glacier. Example: “The lake lies behind a ridge of moraine left by the ice.”
How to use moraine
Learner’s notesIn plain EnglishA pile of rock and rubble left behind by a glacier.
It is mainly used in geology and physical geography.
Moraines are the material itself, so you can say a glacier deposits a moraine.
Trace the full origin ↓Fill the gap
Can you complete this real example?
The lake lies behind a ridge of _____ left by the ice.
Etymology
English took the word from French moraine, which came from Savoyard Italian morena. That word goes back to Franco-Provençal words meaning muzzle or snout.