
Mass wasting, also known as slope movement or mass movement, is the geomorphic process by which soil, sand, regolith, and rock move downslope typically as a mass, largely under the force of gravity, but frequently affected by water and water content as in submarine environments and mudslides. Types of mass wasting include creep, slides, flows, top...
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http://en.wikipedia.org/wiki/Mass_wasting

A general term used for any downslope movement of rock, soil, snow or ice under the influence of gra
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http://www.encyclo.co.uk/local/22392

General term that describes the downslope movement of sediment, soil, and rock material.
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http://www.physicalgeography.net/physgeoglos/m.html

downslope movement of soil or rock on, or near, the earth's surface under the influence of gravity.
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https://nsidc.org/cryosphere/glossary?page=15

A general term for the downslope movement of soil and rock material under the direct influence of gravity. The debris removed is not carried within, on, or under another medium. However, mass wasting debris added to a glacier or glacier margin may be incorporated into till.
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https://www.encyclo.co.uk/local/20131
No exact match found.