biogas

American  

[bahy-oh-gas] / ˈbaɪ oʊˌgæs /

Or bio-gas

noun

1. any gas fuel derived from the decay of organic matter, as the mixture of methane and carbon dioxide produced by the bacterial decomposition of sewage, manure, garbage, or plant crops.

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biogas British  

/ ˈbaɪəʊˌɡæs /

noun

1. a gas that is produced by the action of bacteria on organic waste matter: used as a fuel

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biogas Scientific  

/ bī′ō-găs′ /

1. See under biofuel

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Etymology

Origin of biogas

First recorded in 1970–75; bio- + gas

Example Sentences

Her neighbour, 45-year-old Munni Bai, who has asthma, had switched to using an electric cooker as well as biogas from cow dung, to help her breathing.

From Barron's • Mar. 24, 2026

The funds helped expand export markets, diversify crops, and finance a biogas plant and a microalgae facility for water recycling.

From Barron's • Feb. 18, 2026

Dell’s interest in energy began in college, when he worked on a project to turn human waste into biogas in India.

From The Wall Street Journal • Feb. 4, 2026

The firm specialises in capturing and storing CO2 released from organic processes such as fermentation, whisky distillation or biogas plants.

From BBC • Jan. 7, 2026

In 2021, the EPA updated its definition of food waste to include composting and anaerobic digestion — both of which can take inputs like uneaten food and turn them into fertilizer or biogas, respectively.

From Salon • Jan. 22, 2025