periplast

from The Century Dictionary.

• noun The intercellular substance, matrix, or stroma of an organ or tissue of the body, containing and supporting the cells or other formations which are peculiar to such organ or tissue.
• noun The peripheral or cytoplasmic portion of the cell, as distinguished from the endoplast, or nucleus: same as periblast.
• noun An indefinite term for the attraction-sphere of the cell.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Biol.) Same as periblast.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun biology Alternative form of periblast..