alluvial

From Latin alluvius (“alluvial”), from alluviō (“an overflowing, inundation”), from alluō (“wash against”). Analyzable as alluvium +‎ -ial.

• (UK, US) IPA^(key): /əˈluː.vi.əl/

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alluvial (not comparable)

1. Pertaining to the soil deposited by a stream.
   • 1992, Anna K. Behrensmeyer, Robert W. Hook, “Paleoenvironmental Contexts and Taphonomic Modes”, in Terrestrial Ecosystems through Time, page 35:

     Soils are a prominent feature of floodplain environments, and we include them in this section because most of the available information on ancient soils pertains to alluvial examples, aside from those in Quaternary-Recent time.

alluvial (countable and uncountable, plural alluvials)

1. (countable) A deposition of sediment over a long period of time by a river; an alluvial layer.
2. Alluvial soil; specifically, in Australia, gold-bearing alluvial soil.

• (deposition of sediment): The noun is normally used in the plural by engineers who recover valuable minerals from these layers.

• alluvium

• deltaic

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alluvial (feminine alluviale, masculine plural alluviaux, feminine plural alluviales)

1. alluvial

• “alluvial”, in Trésor de la langue française informatisé , 2012.

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alluvial (strong nominative masculine singular alluvialer, not comparable)

1. alluvial