Definition of endoplasmic reticulum in English:

endoplasmic reticulum


  • [mass noun] A network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane. It usually has ribosomes attached and is involved in protein and lipid synthesis.

    • ‘Elongation and unsaturation of fatty acids occurs in both the mitochondria and endoplasmic reticulum (microsomal membranes).’
    • ‘Slower-mobility products result from improper processing in the endoplasmic reticulum, which is likely the result of misfolding.’
    • ‘However, the contributions of other membrane compartments, such as the plasma membrane, vacuoles, and endoplasmic reticulum, have not been investigated.’
    • ‘Many tumor cells contained scattered cytoplasmic particles consistent with glycogen, mitochondria, and rough endoplasmic reticulum.’
    • ‘It is also present in smaller amounts in the membranes of the mitochondria and endoplasmic reticulum within the cells.’


endoplasmic reticulum