Biomass

noun (often used attributively, as in "biomass energy")
/ˈbaɪəʊˌmæs/
The total dry weight of all living organisms, or of a specified group of organisms, present in a given area or at a particular trophic level at a specific point in time.

✍️ Usage in a UPSC answer

As India pursues its net-zero commitment, harnessing agricultural biomass for decentralised power generation offers a twin dividend: it curbs the stubble-burning that chokes north Indian cities each winter, while providing farmers a supplementary income stream from what was once treated as waste.

Synonyms

biofuel feedstockorganic matterbiological materialplant matterbioenergy resourcebiota

Antonyms

fossil fuelinorganic mattermineral matter

🌱 Word Family

biomass (n), biomasses (n pl), bioenergy (n), biomaterial (n), biofuel (n)

🔡 Root

Greek bios = life; bio- = life-prefix; Latin massa = lump, quantity; first recorded 1930s

📜 Etymology

From bio- (from Greek bios, life) + mass (from Latin massa, lump or quantity); first recorded in the 1930s.

🧠 Memory Hook

Break it as BIO + MASS — a "mass of life": all the living (or once-living) stuff you can burn for green energy or weigh in an ecosystem.

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Prelims 2026 Key
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