Humus

['hjuːməs] or ['hjuməs]

Definition

(noun.) partially decomposed organic matter; the organic component of soil.

Checked by Judith--From WordNet

Definition

(n.) That portion of the soil formed by the decomposition of animal or vegetable matter. It is a valuable constituent of soils.

Editor: Rena

Definition

n. a brown or black powder in rich soils formed by the action of air on animal or vegetable matter.—adj. Hū′mous.

Editor: Susanna

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