The sum total of all operations, practices and treatments used to protect soil and enhance its performance.

The subdiscipline of soil science that studies the functions and activities of soil-based microorganisms.

The subdiscipline of soil science that studies the solid inorganic phases controlling physicochemical processes in soils and sediments.

The sub-discipline of soil science that studies the physical properties of the soil, with particular emphasis on soil moisture potential, water movement and solute transport.

A scientist who studies soil as a component of natural and man-made systems.

The subdiscipline of soil science that deals with the systematic categorization of soils based on distinguishing characteristics developed during soil genesis as well as criteria that dictate choices in land use and soil management.

A pipe that carries off liquid wastes from a toilet

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.

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