moulin: meaning, definition, pronunciation and examples

Very Low (C2)
UK/ˈmuːlæ̃/US/muˈlæn/

Specialist / Technical (Glaciology, Geography)

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Quick answer

What does “moulin” mean?

A nearly vertical shaft in a glacier, formed by surface water percolating through a crack in the ice.

Audio

Pronunciation

Definition

Meaning and Definition

A nearly vertical shaft in a glacier, formed by surface water percolating through a crack in the ice; a glacial pothole.

Primarily used as a glaciology term to describe a specific glacial feature; sometimes extended metaphorically to describe things resembling a swirling, vertical shaft, such as a powerful vortex or whirlpool, though this is rare.

Dialectal Variation

British vs American Usage

Differences

No difference in meaning. It is used identically in British and American academic/technical contexts.

Connotations

Evokes imagery of glaciers, geology, and physical geography. The word retains its French spelling and pronunciation, lending a precise, scientific tone.

Frequency

Equally rare and technical in both variants of English.

Grammar

How to Use “moulin” in a Sentence

The + [glacial/ice] + moulin + [verb e.g., drained, descended into]A moulin + [verb e.g., forms, leads]

Vocabulary

Collocations

strong
glacial moulinice moulinmoulin shaft
medium
form a moulinwater-filled moulincrevasse and moulin
weak
deep moulindangerous moulinmoulin system

Usage

Meaning in Context

Business

Not used.

Academic

Used in glaciology, physical geography, and earth science papers. Essential for describing glacial hydrology.

Everyday

Virtually never used in everyday conversation.

Technical

Standard term in glaciology and related fieldwork reports.

Vocabulary

Synonyms of “moulin”

Neutral

glacial potholeglacial mill

Weak

ice shaftvertical shaft

Vocabulary

Antonyms of “moulin”

glacial surfaceice sheetoutwash plain

Watch out

Common Mistakes When Using “moulin”

  • Misspelling as 'mouline' or 'moolin'.
  • Using it to refer to a general hole or cave not in a glacier.
  • Attempting to use it as a verb.

FAQ

Frequently Asked Questions

No, it is a very low-frequency, specialist term used almost exclusively in glaciology and physical geography.

No, in English it is exclusively a noun. The process is described as 'moulin formation'.

It is borrowed directly from French, where 'moulin' means 'mill'. The term 'glacial mill' is a synonym, describing the swirling, mill-like action of the water.

In British English, it is often pronounced /ˈmuːlæ̃/ (MOO-lan). In American English, it is commonly /muˈlæn/ (moo-LAN), closer to the French original.

A nearly vertical shaft in a glacier, formed by surface water percolating through a crack in the ice.

Moulin is usually specialist / technical (glaciology, geography) in register.

Learning

Memory Aids

Mnemonic

Think of 'moulin' like a 'mill' (similar root) that grinds down into the ice, swirling water down a vertical shaft.

Conceptual Metaphor

THE GLACIER IS A BODY WITH VEINS (moulins are like wounds or pores where meltwater enters the glacier's interior).

Practice

Quiz

Fill in the gap
Glaciologists lowered sensors into the to measure subglacial water flow.
Multiple Choice

What is a 'moulin'?