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

Through the program, some homeowners can save $2,000 on costs just to upgrade air source heat pumps, heat pump water heaters, and biomass stoves and boilers to eco-friendly options. —Kate Nalepinski, MSNBC Newsweek, 6 May 2025

Areas of friction include the fact that biomass prices are expected to rise as the demand for sustainable biomass grows while supply remains limited. —Amy Nguyen, Forbes.com, 24 Apr. 2025

Add up the total population and biomass of the insects, and the numbers are even more staggering. —Nicholas Green, The Conversation, 24 Mar. 2025

Once the necessary genes are identified, the team hopes that fine-tuning their activity will increase biomass yield. —ArsTechnica, 4 Apr. 2025

Word History

First Known Use

1931, in the meaning defined at sense 1

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 

: the amount of living matter (as in a unit area or volume of habitat)