biogas

American

[bahy-oh-gas] / ˈbaɪ oʊˌgæs /

Or bio-gas

noun

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.

biogas British

/ ˈbaɪəʊˌɡæs /

noun

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

biogas Scientific

/ bī′ō-găs′ /

See under biofuel

Etymology

Origin of biogas

First recorded in 1970–75; bio- + gas

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

biogas

She has put BP’s U.S. biogas business Archaea up for sale just days after doing the same for its U.K.

From The Wall Street Journal ● Aug. 5, 2026

The company also announced its intention to sell its biogas business in the U.S.

From MarketWatch ● Aug. 4, 2026

Madhura Joshi of climate think tank E3G said rural households may turn to biomass like firewood and subsidised kerosene, while some could shift to electricity, biogas or improved cookstoves where available and affordable.

From BBC ● Mar. 19, 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

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

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023