Is it der, die or das Biomasse? – die Biomasse (biomass)

Why is it die Biomasse?

Biomasse is a compound noun, and German compounds take the article of their last word: die Masse. So it’s die Biomasse.

Sense 1

die

[1] Total organic mass of living or dead organisms

[1] gesamte organische Masse lebender oder toter Organismen

[1] steppe grasses form most of their biomass under the earth
[1] Steppengräser bilden den Großteil ihrer Biomasse unter der Erde.

[1] Energy generation from Biomass Boomtä
[1] Die Energiegewinnung aus Biomasse boomt.

Dictionary entries include material from Wiktionary. Wiktionary