alluvial

[Eng. alluvium; -al. In Ger. and Fr. alluvial; Lat. alluvius.) Pertaining to alluvium; washed away from one place and deposited in another. (Used specially in geology.) "Portions of plains loaded with alluvial accumula tions by transient floods."-Lyell: Princip. of Geol, 8th ed. (1850), ch. xlvii. Alluvial deposits: Deposits consisting of alluvium (q. v.).