biomass
noun
bio·mass
ˈbī-ō-ˌmas 
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
Although Visolis currently uses biomass instead of flue gas CO₂, the underlying idea of using waste carbon to produce isoprene is the same.
—
Srishti Gupta, Interesting Engineering, 16 Feb. 2026
Similar conditions at the end of 2025 allowed a biomass of algae to linger near the lake’s surface until the water began to freeze.
—Andrew Paul, Popular Science, 29 Jan. 2026
Post-Brexit, the UK expanded subsidies for biomass, positioning wood pellets as a bridge fuel to reduce reliance on coal.
—Ken Silverstein, Forbes.com, 28 Jan. 2026
Using a plant growth-promoting rhizobacteria (PGPR) cocktail of Streptomyces and Agromyces-Bacillus to improve the metabolizing of nutrients and stimulate plant growth hormones, greenhouse kale and choy sum grew faster in height, leaf surface area, and shoot biomass.
—New Atlas, 4 Jan. 2026
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Srishti Gupta, Interesting Engineering, 16 Feb. 2026
Similar conditions at the end of 2025 allowed a biomass of algae to linger near the lake’s surface until the water began to freeze.
—Andrew Paul, Popular Science, 29 Jan. 2026
Post-Brexit, the UK expanded subsidies for biomass, positioning wood pellets as a bridge fuel to reduce reliance on coal.
—Ken Silverstein, Forbes.com, 28 Jan. 2026
Using a plant growth-promoting rhizobacteria (PGPR) cocktail of Streptomyces and Agromyces-Bacillus to improve the metabolizing of nutrients and stimulate plant growth hormones, greenhouse kale and choy sum grew faster in height, leaf surface area, and shoot biomass.
—New Atlas, 4 Jan. 2026
See All Example Sentences for biomass
Cite this Entry
“Biomass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biomass. Accessed 25 Feb. 2026.
Copy CitationKids 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
: the amount of living matter (as in a unit area or volume of habitat)
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