biomass

noun

bio·​mass ˈbī-ō-ˌmas How to pronounce biomass (audio)
1
: the amount of living matter (as in a unit area or volume of habitat)
2
: plant materials and animal waste used especially as a source of fuel

Examples of biomass in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
While sustainable biomass is one option, Epic Group states that decarbonizing industrial heat primarily involves transitioning to electricity sourced from renewable energy. Angela Velasquez, Sourcing Journal, 11 Nov. 2025 Composed of elements like proteins, fatty lipids, and sugars, the yeast biomass remaining after alcohol and drug production is typically classified as a byproduct or waste. Mrigakshi Dixit, Interesting Engineering, 4 Nov. 2025 According to the team, the process mimics the geological conditions that form fossil fuels, compressing wet biomass at high temperatures and pressures to produce biocrude. Melissa Fleur Afshar, MSNBC Newsweek, 31 Oct. 2025 Opportunities also abound to sell credits for switching from fossil fuel stoves—some 80% of sub-Saharan Africans use wood or charcoal for cooking—to solar or biomass. Charlie Campbell, Time, 30 Oct. 2025 See All Example Sentences for biomass

Word History

First Known Use

1931, in the meaning defined at sense 1

Time Traveler
The first known use of biomass was in 1931

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Cite this Entry

“Biomass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biomass. Accessed 14 Nov. 2025.

Kids Definition

biomass

noun
bio·​mass ˈbī-ō-ˌmas How to pronounce biomass (audio)
1
: the amount of living matter (as in an area or volume of habitat)
2
: plant materials and animal waste used especially as a source of fuel

Medical Definition

biomass

noun
bio·​mass -ˌmas How to pronounce biomass (audio)
: the amount of living matter (as in a unit area or volume of habitat)

More from Merriam-Webster on biomass

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