LEACHING
\lˈiːt͡ʃɪŋ], \lˈiːtʃɪŋ], \l_ˈiː_tʃ_ɪ_ŋ]\
Definitions of LEACHING
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Action of water soluble substances like calcium, fertilizers, or pesticides, dissolving in available water, typically rain, and washing out soil as a waste. Leached-out chemicals, known as leachites, are considered to be pollutants of surface and sub-surface water. This is a very natural process.
By Henry Campbell Black