leaching

noun

Pronunciation: /ˈliːt͡ʃɪŋ/

The process by which something is leached.
“The leachings were performed in a controlled atmosphere chamber in four different steps […]”
Liquid that leaches.
“One set of plants was watered with distilled water, while to the other set was added in addition small amounts of leachings, containing only a trace of nitrogen, from a cultivated field.”