Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.

Definition of Endoplasmic reticulum

Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026

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.

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