DILUVIUM

Etymology

Noun

diluvium (plural diluviums or diluvia)

An inundation or flood; a deluge.

(geology) A deposit of sand, gravel, etc. made by oceanic flooding.

Source: Wiktionary

Di*lu"vi*um, n.; pl. E. Diluviums, L. Diluvia. Etym: [L. diluvium. See Dilute, Deluge.] (Geol.)

Definition: 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.

Source: Webster’s Unabridged Dictionary 1913 Edition