Meaning of endoplasmic reticulum

endoplas'mic retic'ulum

Pronunciation: [key]
— Cell Biol. Cell Biol.
  1. a network of tubular membranes within the cytoplasm of the cell, occurring either with a smooth surfaceor studded with ribosomesinvolved in the transport of materials. See illus. under
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.