| Diluvium (n.) A deposit of superficial loam, sand, gravel, stones, etc., caused by former action of flowing waters, or the melting of glacial ice. Thesaurus Entries alluvion, alluvium, ash, cinder, clinker, debris, deposit, deposition, deposits, detritus, draff, dregs, drift, dross, ember, feces, froth, grounds, lees, loess, moraine, offscum, precipitate, precipitation, scoria, scree, scum, sediment, settlings, silt, sinter, slag, smut, soot, sublimate |