Hypertext Webster Gateway: "Diluvium"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Diluvium \Di*lu"vi*um\, n.; pl. E. {Diluviums}, L. {Diluvia}.
[L. diluvium. See {Dilute}, {Deluge}.] (Geol.)
A deposit of superficial loam, sand, gravel, stones, etc.,
caused by former action of flowing waters, or the melting of
glacial ice.
Note: The accumulation of matter by the ordinary operation of
water is termed alluvium.
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