illuvium

[ ih-loo-vee-uh m ]
/ ɪˈlu vi əm /

noun, plural il·lu·vi·ums, il·lu·vi·a [ih-loo-vee-uh] /ɪˈlu vi ə/.

the material accumulated through illuviation.

Origin of illuvium

< Latin illuv(iēs) (see illuvial) + -ium, on the model of alluvium, Latin dīluvium deluge, etc.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019