Definition of Alluvial

related to alluvium, a deposit of clay, silt, and gravel left by a flowing river in a delta

Examples of Alluvial in a sentence

The sediment around this river delta is alluvial, full of silt and clay that will make the soil extremely fertile.  🔊

Alluvial soil is extremely fertile, thanks to the deposits of clay, gravel, and silt that makes it easier for plants to grow.  🔊

Alluvial soil is formed over time by flowing rivers that carry deposits of particular sediments to rest in a particular position.  🔊

When a river has a long time to carry fertile sediment types into one place, the soil there becomes alluvial.  🔊

Alluvial sediment is usually made up of silt, gravel, and gravel, which is usually extremely fertile and carried into one place by running water.  🔊

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