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.
That included seafloor mapping data, water-column observations, and measurements of marine biomass. Aamir Khollam, Interesting Engineering, 24 June 2026 On a recent windy weekday, for example, 56% of the country’s electricity was coming from wind power, 13% from solar, 17% from biomass, and 14% from hydropower. Constance Malleret, Christian Science Monitor, 21 June 2026 The sculptures are made with a pH-neutral artificial reef compound that allows coral, sponges, and biomass to settle safely on them. Megan Margulies, Travel + Leisure, 14 June 2026 Until now: in a new paper published in Science, researchers combined data from more than 300 studies to estimate the total global biomass of AM fungi. Sam MacDonald, Scientific American, 11 June 2026 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 27 Jun. 2026.

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)

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