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Pronunciation varies by accent · noun
(geology) material displaced across a soil profile, from one layer to another, by the action of rainwater.
Use illuvium when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Illuvium means (geology) material displaced across a soil profile, from one layer to another, by the action of rainwater.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use illuvium where its definition matches the intended context.
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