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illuviation Line breaks: il¦lu¦vi|ation
Pronunciation: /ɪˌl(j)uːvɪˈeɪʃ(ə)n/

Definition of illuviation in English:


[mass noun] Soil Science
The introduction of salts or colloids into one soil horizon from another by percolating water.
Example sentences
  • The study also indicates that the illuviation of clay particles and their subsequent accumulation in the Bt horizons have occurred in sodic environment.
  • Clay illuviation is the process that has been most exhaustively considered in micromorphological studies.


Example sentences
  • It may possess an ‘illuvial’ concentration of silicate clay, iron, aluminium, or humus, alone or in combinations.
Example sentences
  • Illuviated clay is frequently found in carbonate-rich soils of arid regions.


Early 20th century: from il- 'in' + -luvial (on the pattern of alluvial) + -ation.

Definition of illuviation in:
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