marsh gas
noun/ˈmɑːʃ ɡæs/
/ˈmɑːrʃ ɡæs/
[uncountable]- the gas methane, especially when it is produced in a marsh when plants decay (= become destroyed by natural processes)
Want to learn more?
Find out which words work together and produce more natural sounding English with the Oxford Collocations Dictionary app.
Check pronunciation:
marsh gas