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illuvial

[ih-loo-vee-uh l, ih-loov-yuh l]
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adjective
  1. of or relating to illuviation or illuvium.
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Origin of illuvial

1920–25; < Latin illuvi(ēs) mud, flood, literally, what washes or is washed in (il- il-1 + -luv-, combining form of lavere to wash + -iēs noun suffix) + -al1; see alluvial
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018