The American Heritage® Dictionary of the English Language, 4th Edition
n. A brown or black organic substance consisting of partially or wholly decayed vegetable or animal matter that provides nutrients for plants and increases the ability of soil to retain water.
n. A large group of natural organic compounds, found in the soil, formed from the chemical and biological decomposition of plant and animal residues and from the synthetic activity of microorganisms
n. An alternative spelling of hummus.
the GNU version of the Collaborative International Dictionary of English
n. That portion of the soil formed by the decomposition of animal or vegetable matter. It is a valuable constituent of soils.
The Century Dictionary and Cyclopedia
n. Vegetable mold.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. partially decomposed organic matter; the organic component of soil
n. a thick spread made from mashed chickpeas, tahini, lemon juice and garlic; used especially as a dip for pita; originated in the Middle East
Word Usage
"The word "humiliation" is rooted in the Latin word humus, which means "dirt.""