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.
This includes shifting away from fossil fuels toward greener electricity sources such as wind, solar and the more controversial biomass. Jasmin Malik Chua, Sourcing Journal, 20 May 2025 The Amazon, Congo Basin, and Southeast Asian rainforests are the Earth’s lungs, capturing CO2 in biomass and soil. Ken Silverstein, Forbes.com, 19 May 2025 There’s also the possibility of carbon sequestration by sinking the excessive biomass to the bottom of the ocean. Stephanie Elam, CNN Money, 15 May 2025 When tortoises hit the turf here en masse—more than 30 per acre—their collective biomass density surpasses the vertebrate biomass of large mammals in many African national parks and, to me, is every bit as spectacular. Kevin Gepford, Smithsonian Magazine, 15 Apr. 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 4 Jun. 2025.

Kids Definition

biomass

noun
bio·​mass
ˈbī-ō-ˌmas
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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