mofette: meaning, definition, pronunciation and examples

Very Rare / Technical
UK/məʊˈfɛt/US/moʊˈfɛt/

Scientific / Technical / Geological

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Quick answer

What does “mofette” mean?

A fissure in the Earth’s crust from which carbon dioxide and other gases escape, typically found in volcanic regions.

Audio

Pronunciation

Definition

Meaning and Definition

A fissure in the Earth’s crust from which carbon dioxide and other gases escape, typically found in volcanic regions.

A toxic gas vent, particularly one releasing carbon dioxide, that can be hazardous to animals and humans due to its suffocating properties.

Dialectal Variation

British vs American Usage

Differences

No significant difference in usage or meaning; it is a specialized international scientific term.

Connotations

Neutral scientific term in both regions.

Frequency

Extremely low frequency in both dialects, limited to technical literature.

Grammar

How to Use “mofette” in a Sentence

The mofette emits gases.A mofette was discovered near the volcano.Scientists studied the mofette's composition.

Vocabulary

Collocations

strong
toxic mofettecarbon dioxide mofettevolcanic mofette
medium
dangerous mofettegas-emitting mofettefumarolic mofette
weak
small mofetteactive mofettedeadly mofette

Examples

Examples of “mofette” in a Sentence

verb

British English

  • The area is known to mofette, releasing CO₂ into the soil.
  • Groundwater can mofette in low-lying areas.

American English

  • The field mofettes, creating pockets of dangerous gas.
  • The site began to mofette after the seismic activity.

adverb

British English

  • The gas escaped mofette-like from the cracks.

American English

  • It seeped out mofette-style, invisible and deadly.

adjective

British English

  • The mofette activity was monitored closely.
  • They avoided the mofette zone.

American English

  • The mofette gases posed a silent threat.
  • Mofette emissions were detected by the sensors.

Usage

Meaning in Context

Business

Virtually never used.

Academic

Used in geology, volcanology, and environmental science papers.

Everyday

Extremely rare; would likely require explanation.

Technical

Primary context. Refers specifically to vents emitting cool, predominantly CO₂ gases, often in post-volcanic areas.

Vocabulary

Synonyms of “mofette”

Strong

CO₂ venttoxic gas vent

Neutral

gas ventfumarole (though fumarole often implies hotter, steam-rich emissions)gas fissure

Weak

gas emission pointgeological vent

Vocabulary

Antonyms of “mofette”

air intakeoxygen sourcefresh air vent

Watch out

Common Mistakes When Using “mofette”

  • Mispronouncing it as /ˈmɒfɪt/ or /moʊˈfiːt/.
  • Using it as a general term for any volcanic vent.
  • Confusing it with 'fumarole', which is more common and often associated with hotter, steam-based emissions.

FAQ

Frequently Asked Questions

Carbon dioxide (CO₂) is the primary gas, though other gases like methane or hydrogen sulfide may also be present.

Yes, they can be extremely dangerous. Because CO₂ is denser than air and odorless, it can accumulate in depressions and cause suffocation for animals and humans.

While both are gas vents, a fumarole typically emits hot gases, often rich in steam and sulphurous compounds. A mofette specifically emits cooler gases, predominantly carbon dioxide.

It comes from the Italian 'moffetta', meaning a bad smell or stench, which itself derives from the Latin 'mephitis', meaning a noxious exhalation from the earth.

A fissure in the Earth’s crust from which carbon dioxide and other gases escape, typically found in volcanic regions.

Mofette is usually scientific / technical / geological in register.

Mofette: in British English it is pronounced /məʊˈfɛt/, and in American English it is pronounced /moʊˈfɛt/. Tap the audio buttons above to hear it.

Phrases

Idioms & Phrases

  • None. The word is too technical for idiomatic use.

Learning

Memory Aids

Mnemonic

Imagine a MOTH getting too close to a FETid (bad-smelling) gas vent – the 'mofette' – and falling down.

Conceptual Metaphor

EARTH'S BREATH (specifically, a toxic, suffocating breath).

Practice

Quiz

Fill in the gap
Hikers were warned to avoid the low-lying , where invisible carbon dioxide could collect and suffocate them.
Multiple Choice

In which field is the term 'mofette' primarily used?

Practise

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Five interactive tools to remember words, train your ear, and build vocabulary in real context — drawn from this dictionary.

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