illuviation

American  

[ih-loo-vee-ey-shuhn] / ɪˌlu viˈeɪ ʃən /

noun

1. the accumulation in one layer of soil of materials that have been leached out of another layer.

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illuviation British  

/ ɪˌluːvɪˈeɪʃən /

noun

1. the process by which a material ( illuvium ), which includes colloids and mineral salts, is washed down from one layer of soil to a lower layer

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illuviation Scientific  

/ ĭ-lo̅o̅′vē-ā′shən /

1. The deposition of colloids, soluble salts, and suspended mineral particles in a lower soil horizon through the process of eluviation (downward movement) from an upper soil horizon.

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Other Word Forms

• illuvial adjective

Etymology

Origin of illuviation

First recorded in 1925–30; illuvi(al) + -ation