biogas

(redirected from Swamp gas)
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biogas

[′bī·ō‚gas]
(materials)
A mixture of methane and carbon dioxide generated from the bacterial decomposition of animal and vegetable wastes.
References in periodicals archive ?
It's the same thing as swamp gas or sewer gas," says Roy D.
But scientists think it's probably just burning swamp gas.
The first: Flying saucers are some combination of unique weather and earth-related phenomena (such as swamp gas, freak electrical discharges from the sky or pizoelectric effects within the earth's crust); the second: They are natural objects misidentified as weather balloons, helicopters or even bright stars.
Pixie dust, ogre strength and swamp gas will boost speed and strength, as well as thwart players' opponent's progress if gamers fall behind.