মধ্যস্থলমধ্যাকৰ্ষণ
মধ্যাংশ (Assamese)
1. BotanyPith, or medulla, is a tissue in the stems of vascular plants. Pith is composed of soft, spongy parenchyma cells, which in some cases can store starch. In eudicotyledons, pith is located in the center... from wikipedia.org