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cohesive soil[kō′hē·siv ′sȯil]
A sticky soil, such as clay or silt; its shear strength equals about half its unconfined compressive strength.
1.A soil which when unconfined has appreciable cohesion when submerged, and considerable strength when air-dried.
2. Soil, such as clay, whose particles adhere to each other by means of adhesive and cohesive forces.