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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.
Finding domestic sources of biomass could increase energy security. Sujita Sinha, Interesting Engineering, 21 Nov. 2025 The company's manufacturing facility sourced 60% of its power from the turbine, and the rest from solar and biomass systems. Neal Riley, CBS News, 20 Nov. 2025 The project will convert cotton stalk into torrefied biomass, a cleaner, drop-in substitute for coal in boilers at Arvind’s manufacturing operations, reducing fossil fuel usage. Angela Velasquez, Sourcing Journal, 19 Nov. 2025 Even if that doesn’t sound all that appetizing, the resulting biomass can then be processed into a variety of high-protein foods. Mack Degeurin, Popular Science, 19 Nov. 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 5 Dec. 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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