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

Replacing crude oil derivatives with food waste biomass solves two major environmental challenges simultaneously. — Mrigakshi Dixit, Interesting Engineering, 10 Aug. 2026

The Smaller Renewable Categories The Statistical Review groups geothermal, biomass, and several smaller renewable technologies together. — Robert Rapier, Forbes.com, 9 Aug. 2026

Over the following decades, the company expanded into a sprawling agricultural and industrial enterprise that included sugar mills, a refinery, a rice mill, packaging facilities and one of North America’s largest biomass renewable power plants. — Luisa Yanez, Miami Herald, 5 Aug. 2026

At the same time, the researchers are also studying how to turn the leftover seaweed biomass into chemicals, fuel, and fertilizer. — New Atlas, 27 July 2026

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)