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bioethics
biofabric
biofeedback
biofilm
biofilter
bioflavonoid
biofuel
biog.
biogas
biogenesis
biogenic
biogeochemistry
biogeography
biographee
biography
biohazard
bioinformatics
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biogas
bi·o·gas [ b ō gàss ]


noun 
Definition:
 
organic gas used as fuel: a mixture of carbon dioxide and methane. Source: fermentation of organic waste. Use: fuel.
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