methane: meaning, definition, pronunciation and examples
Medium-High (common in scientific, environmental, and energy contexts)Formal, Scientific, Technical, Environmental
Quick answer
What does “methane” mean?
A colourless, odourless flammable gas which is the main constituent of natural gas and a primary component of the Earth's atmosphere.
Audio
Pronunciation
Definition
Meaning and Definition
A colourless, odourless flammable gas which is the main constituent of natural gas and a primary component of the Earth's atmosphere; chemical formula CH₄.
The simplest alkane hydrocarbon, significant as a greenhouse gas and a primary energy source. It is produced by biological processes (e.g., decomposition, digestion) and geological processes.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Spelling and pronunciation are consistent. Conceptual emphasis may vary slightly (e.g., UK media may more frequently link it to North Sea gas, US to fracking).
Connotations
Neutral/scientific in both. Increasingly carries strong negative connotations related to climate change due to its potent greenhouse effect.
Frequency
Comparable frequency in both varieties, spiking in news related to energy policy and climate reports.
Grammar
How to Use “methane” in a Sentence
Methane is released by XX produces methaneX contains methaneMethane acts as a greenhouse gasto reduce methaneVocabulary
Collocations
Examples
Examples of “methane” in a Sentence
verb
British English
- The anaerobic digester will methanise the organic waste, producing methane.
- Researchers are studying how to mitigate processes that methaneate the permafrost.
American English
- The landfill site is designed to capture gas as waste methanates.
- New additives aim to reduce how much cattle methaneate.
adverb
British English
- Not standard. No common adverbial form.
American English
- Not standard. No common adverbial form.
adjective
British English
- The methane concentration was alarmingly high.
- They installed a new methane detection system.
American English
- Methane hydrate deposits are a potential energy source.
- The methane output from the well was measured.
Usage
Meaning in Context
Business
Discussed in energy sector reports, investment in methane capture technologies.
Academic
Central in papers on organic chemistry, climate modelling, and atmospheric science.
Everyday
Appears in news about climate change, cooking gas, and landfill sites.
Technical
Specifications for gas pipelines, safety data sheets, chemical engineering processes.
Vocabulary
Synonyms of “methane”
Strong
Neutral
Weak
Vocabulary
Antonyms of “methane”
Watch out
Common Mistakes When Using “methane”
- Pronouncing it /mɛˈθeɪn/ (meh-THAYN) is less common. Using it as a countable noun (e.g., 'methanes') is incorrect. Confusing it with 'methanol' (a different chemical).
FAQ
Frequently Asked Questions
Primarily, yes. Purified natural gas is mostly methane, but raw natural gas can contain other hydrocarbons and impurities.
Methane is a potent greenhouse gas, trapping about 28-36 times more heat than carbon dioxide over a 100-year period, though it has a shorter atmospheric lifetime.
No, pure methane is odourless. The 'gas smell' in homes is from an added odorant (like mercaptan) for safety leak detection.
Natural sources include wetlands, termites, oceans, and geological seeps. Human-caused sources include agriculture (livestock, rice paddies), fossil fuel extraction, and landfills.
A colourless, odourless flammable gas which is the main constituent of natural gas and a primary component of the Earth's atmosphere.
Methane is usually formal, scientific, technical, environmental in register.
Methane: in British English it is pronounced /ˈmiːθeɪn/, and in American English it is pronounced /ˈmeθeɪn/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None directly. Figurative use: 'a methane bomb' referring to a potentially catastrophic release of methane from permafrost.”
Learning
Memory Aids
Mnemonic
Think 'METhane' comes from 'METHyl' (a chemical group) + '-ane' (suffix for alkanes). It's the main gas you might associate with a swamp (marsh gas).
Conceptual Metaphor
Often framed as a 'culprit' or 'driver' of warming (e.g., 'methane is a powerful driver of climate change'). Can be a 'resource' (energy) or a 'threat' (greenhouse gas).
Practice
Quiz
Which of these is a significant source of anthropogenic methane?