Definition of Endoplasmic reticulum Endoplasmic reticulum: A structure within cells that is an extension of the nuclear membrane and in which proteins slated to become part of the nuclear membrane are translated, folded and transported. Abbreviated ER.
Endoplasmic reticulum: A structure within cells that is an extension of the nuclear membrane and in which proteins slated to become part of the nuclear membrane are translated, folded and transported. Abbreviated ER.
