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.
Make Home Improvements by the End of the Year The remarkably vast Energy Efficient Home Improvement Credit provides up to $2,000 toward qualified heat pumps, water heaters, biomass stoves, or biomass boilers. Tik Root, Wired News, 12 July 2025 The environmental impact would be significant: diverting biomass from landfills and reducing diesel combustion could prevent approximately 520,000 tons and 790,000 tons of CO₂ emissions, respectively. David Blekhman, Forbes.com, 9 July 2025 Petroleum-free Algae ink, derived from renewable biomass, is an example of Trimco’s focus on reducing fossil fuel dependency. Angela Velasquez, Sourcing Journal, 16 June 2025 At the same time, the world’s largest biomass company, Drax, is cutting down trees across North America with a promise to sell them as a replacement for fossil fuels. Tom Brown, Wired News, 14 June 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

Browse Nearby Words

Cite this Entry

“Biomass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biomass. Accessed 20 Jul. 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!