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

Alternatives adopted elsewhere include biomass, natural gas, electric boilers and heat pumps. — Alexandra Harrell, Footwear News, 15 Sep. 2026

And many scientists and environmentalists have rejected the use of biomass altogether. — ABC News, 13 Sep. 2026

The interior chamber is engineered to handle various fuel setups, including gas burners, solid fuel tablets, alcohol burners and even organic biomass like twigs, bark, and leaves. — New Atlas, 10 Sep. 2026

Other El Segundo companies founded by former SpaceX engineers include nuclear reactor maker Radiant, fishing robot maker Shinkei Systems and waste biomass energy startup Arbor. — Roger Vincent, Los Angeles Times, 9 Sep. 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)