The scientific study of the formation, classification, mapping, and the physical, chemical and biological properties of soil.

(euphemistic) To lose control of one's bowels and accidentally defecate on oneself.

A soil variety typically found in arid climates, usually with little leaching and minimal humus content. Referred to as an "aridisol" in the nomenclature of the United States Department of Agriculture's Natural Resources Conservation Service.

(geology) A soil containing clay minerals that absorb water and swell, causing bumps across terrain.

The application of mechanics (especially fluid mechanics) to soils, especially as a basis for the design and construction of building foundations and earthworks.

(archaic, euphemistic) Human faeces.

(construction, horticulture, archaeology) Soil used for filling, that is, found within or contemporaneously placed within a cavity, or a supply of soil for use as fill.

Soiled from display in a shop; shopworn.

(construction) A sanitation pipe that penetrates the roof used to vent toilet fixtures.

A chemical that temporarily or permanently prevents the growth of all plants and animals, depending on the chemical.