illuviation

[ ih-loo-vee-ey-shuhn ]

noun

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

illuviation

/ 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

illuviation

/ 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.

Derived Forms

• ilˈluvial, adjective

Word History and Origins

Origin of illuviation¹

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

Word History and Origins

Origin of illuviation¹

C20: from Latin illuviēs dirt, mud, from il- + -luviēs, from lavere to wash