Definition

A nearly vertical hole or cavity in a glacier formed by debris falling through a crack in the ice.

Example

The climbers carefully navigated around the moulin to avoid falling into the glacier.

Conversation

Have you ever seen a moulin in a glacier?

No, I haven't! What is it exactly?

It's a vertical shaft formed by water flowing through the ice.

That sounds fascinating! I’d love to see one in person.

Synonyms & Antonyms

Root Explanation

Moulin → The word 'moulin' comes from Old French 'moulin', meaning a mill. It refers specifically to a structure used for grinding grain into flour or meal.

Memory Tip

Think of a 'moulin' as a place where grain is ground into flour — that's why it means a mill.

Visually Confused Words