Meaning of endodermis

en•do•der•mis

Pronunciation: (en"dō-dûr'mis), [key]
— n. Bot.
  1. a specialized tissue in the roots and stems of vascular plants, composed of a single layer of modified parenchyma cells forming the inner boundary of the cortex.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.