দ্ৰাৱকদ্ৰাৱ্যতা
দ্ৰাৱণ (Assamese)
1. ChemistryLeaching is the loss or extraction of certain materials from a carrier into a liquid (usually, but not always a solvent), and may refer to: Leaching (agriculture), the loss of water-soluble plant nutrients... from wikipedia.org