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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.

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

"When we compared the spectra during the transit to the baseline, we saw that the atmosphere blocked the wavelengths of starlight absorbed by methane," Bello-Arufe said.

From Science Daily • May 22, 2026

In addition to methane, the observations also hinted at the presence of ammonia and carbon dioxide.

From Science Daily • May 22, 2026

Investors should make financing methane reductions a priority, consistent with the consensus of nearly 200 countries at the 2023 United Nations Climate Change Conference in Dubai.

From The Wall Street Journal • May 21, 2026

Ultraviolet light from the sun converts methane to more complex hydrocarbon molecules and hydrogen gas.

From "Cosmos" by Carl Sagan




Vocabulary lists containing methane


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