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| il·lu·vi·a·tion [ i lvee áysh'n ] |
noun |
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| Definition: |
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leaching down of soil material: the process by which materials such as colloids and salts are washed from an upper layer of soil to a lower one
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| [Early 20th century. <il- + eluviation] |
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 il·lu·vi·at·ed adjective |
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