humus

[ hyoo-muhs or, often, yoo- ]
/ ˈhyu məs or, often, ˈyu- /

noun

the dark organic material in soils, produced by the decomposition of vegetable or animal matter and essential to the fertility of the earth.

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Origin of humus

1790–1800; <Latin: earth, ground; akin to Greek chamaí on the ground, chthṓn earth, Sanskrit kṣam-,Lithuanian žẽmė,Serbo-Croatian zèmlja ground, earth; cf. chameleon, chthonian, zemstvo; see Homo

OTHER WORDS FROM humus

non·hu·mus, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for humus

British Dictionary definitions for humus

humus
/ (ˈhjuːməs) /

noun

a dark brown or black colloidal mass of partially decomposed organic matter in the soil. It improves the fertility and water retention of the soil and is therefore important for plant growth

Word Origin for humus

C18: from Latin: soil, earth

undefined humus

Avoid confusion with hummus
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for humus

humus
[ hyōōməs ]

A dark-brown or black organic substance made up of decayed plant or animal matter. Humus provides nutrients for plants and increases the ability of soil to retain water.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.