methane

Valid in Scrabble

Pronunciation

/ˈmiːθeɪn/

See all 2 pronunciations

/ˈmiːθeɪn/ · /ˈmɛθeɪn/(US)

Definition of methane

2 senses · 1 part of speech · etymology included

noun

(uncountable)The simplest aliphatic hydrocarbon, CH₄, being a constituent of natural gas, and one of the most abundant greenhouse gases.

“Cattle emit a large amount of methane.”
“Methane, an invisible, odorless gas that makes up more than 95% of natural gas fuel, can be as much as 80 times more potent as a global warmer per given unit than CO₂, which is more plentiful in the atmosphere. While there are less emissions than CO₂, methane lasts around 12 years, while CO₂ lingers for centuries.”

See all 2 definitions

noun

(uncountable)The simplest aliphatic hydrocarbon, CH₄, being a constituent of natural gas, and one of the most abundant greenhouse gases.

“Cattle emit a large amount of methane.”
“Methane, an invisible, odorless gas that makes up more than 95% of natural gas fuel, can be as much as 80 times more potent as a global warmer per given unit than CO₂, which is more plentiful in the atmosphere. While there are less emissions than CO₂, methane lasts around 12 years, while CO₂ lingers for centuries.”
(countable)Any of very many derivatives of methane.

Definitions from Wiktionary, CC BY-SA.

From methyl + -ane.

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