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Definitions

methane

[meth-eyn, mee-theyn] / ˈmɛθ eɪn, ˈmi θeɪn /
NOUN
marsh gas
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

This involves launching a fleet of tanker vehicles which transfer cryogenic liquid methane and liquid oxygen across in sequence, a highly ambitious manoever has not yet been tested.

From BBC • Jun. 9, 2026

Tools such as CalEnviroScreen or PSE’s methane risk map can help people locate pollution sources, toxic facilities and other threats in their area.

From Los Angeles Times • May 27, 2026

The Saturn sized world, known as TOI-199b, contains methane in its atmosphere, according to a new study.

From Science Daily • May 22, 2026

"Models for the composition of temperate, gas-giant exoplanets had predicted that they would contain methane, so it is good to get confirmation that our theories are accurate."

From Science Daily • May 22, 2026

“Can’t, might set the black damp off,” the old miner said, using the colloquial term for methane.

From "October Sky" by Homer Hickam




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