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English definition of “swamp gas”

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swamp gas

noun [C usually singular] uk   us  
a gas produced in a swamp by decaying plants that are covered by water: You could smell the swamp gas a mile off.
Translations of “swamp gas”
in Chinese (Traditional) 沼氣…
in Chinese (Simplified) 沼气…
(Definition of swamp gas from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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