biomass

باللغة العربية: كتلة بيولوجية

1. The total mass of a living thing or a part thereof (such as a cell). (uncountable)
2. The total mass of all, or a specified category of, living things within a specific area, habitat, etc. (uncountable)
3. Organic matter derived from living things that were recently alive (especially vegetation) used as a fuel or source of energy, especially if cultivated for that purpose; also, fuel produced from such organic matter; biofuel. (uncountable)

الجمع biomasses